6Fe2O3 ----------> 4Fe3O4 (s) + O2 (g).

I calculated 0.75 mol with the different heat absorbed, but thinking the difference in the moles of Fe2O3 and O2 should make the answer different. I would like someone else to look at this and see what I am not working out correctly.

The **number of moles** of oxygen produced if 353.7 KJ of heat energy is absorbed is 0.75 mole

The balanced equation for the reaction is given below:

6Fe₂O₃ --> 4Fe₃O₄ (s) + O₂ (g) ΔH = 471.6 KJ

Considering the equation,

6 moles of Fe₂O₃ produced 1 mole of O₂

Thus, we can say that:

When 471.6 KJ of heat were absorbed, 1 mole of O₂ was formed.

With the above, information, we can obtain the **mole of O₂** formed when 353.7 KJ of heat is absorbed. Details below.

From the balanced equation above,

When 471.6 KJ of heat were absorbed, 1 mole of O₂ was formed

Therefore,

When 353.7 KJ of heat are absorbed = (353.7 KJ × 1 mole) / 471.6 KJ = **0.75 mole of O₂ **is formed

Thus, we can conclude that the **mole of oxygen** formed is 0.75 mole

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Consider the following ionic

compounds and determine which

has the higher melting point.

A. BeCl₂

B.Al₂S3

**Answer:**

Al2S3

**Explanation:**

Al2S3 has ions which have a higher magnitude of charge compared to BeCl2. This higher charge creates stronger attractive forces between molecules, holding them together even at high temperatures. Another simple way to compare the melting points is to multiply the charges of the ions together and compare those values. BeCl2 would be 2*1 because of Be2+ and Cl (1)-. Al2S3 would be 2*3 because of S2- and Al3+. Since 2*3 is more than 2*1, Al2S3 has a higher melting point. I think this is a repeat question

**NEED ANSWER ASAP, H.W QUESTION**

How does the Sun's magnetic field affect the corona?

**Answer:**

The surface of the Sun is covered in magnetic fields. This is the force that makes magnets stick to metal, like the door of your refrigerator. The Sun's magnetic fields affect charged particles in the corona to form beautiful features. These include streamers, loops, and plumes.

I need help with this homework assignment problem

**Answer:. Chemical symbol for ion is : ****S, 16 electrons, **

**Explanation: If you add the electrons (which is the exponents of each one you get:**

**2 + 2+ 6+2+4 = 16. So the atom has 16 protons and 16 neutrons. Neutrons have no charge and protons are positive so to balance out the 16 positive protons there are 16 electrons. The atomic number is 16 and on the periodic table that is sulfur. The symbol is S.**

**3 d orbitals are vacant in sulphur but are accessible, so it can make strong covalent bonds. **

**Answer:**

A. The ion is Ar^2+

B. 18

C. 0

**Explanation:**

There are total of 2 + 2 + 6 + 2 + 4 = 16 electrons

since the cation is +2, it's neutral state should be 16 + 2 = 18

A. The ion is Ar^2+

B. 18

C. since 3p => 4s => 3d, so there is no 3d

QUESTION 2

What symbol is used to represent the factor 10²?

K

P

р

H

**Answer:**

D. h

**Explanation:**

hecto (h) = 10^2

which type of wave has the highest frequency?

**Answer:**

**Gamma rays**** have the highest frequency.**

**Explanation:**

science.

Question 14 of 26

Write the balanced COMPLETE ionic equation for the reaction when Kl and

AgNO3 are mixed in aqueous solution. If no reaction occurs, simply write

only NR.

AgNO3(aq)+KI(aq)→AgI(s)+KNO3(aq) is the balanced complete **ionic** equation for the reaction when Kl and **AgNO3** are mixed in aqueous solution.

Since **KI** does not combine with any of the other **reagents** to produce a white precipitate, 1 must be **AgNO3**, and 2 must be KI. 3 is presently still a mystery. Both **H2SO4** and BaCl2, most likely the latter, can produce some white precipitate when combined with **AgNO3**, and neither reacts with KI.

An **ionic equation** is a chemical equation in which the **electrolytes** in **aqueous solution **are described as **dissociated** ions. It is similar to a molecular equation in that it represents compounds as molecules.

AgX (X = Cl, Br, or I) precipitates from the reaction of **AgNO3** with **halide** ion solutions are employed in **photographic** films.

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if the fire has already started how would you ensure that there is no continuous supply of oxygen and ignition temperature is not reached

**Answer:**

However, ignition temperature is the lowest temperature at which a volatile material will be vaporised into a gas which ignites without the help of any ignition source. The ignition temperature is different from flash point since

The **fire** can be stopped by removing the supply of **oxygen** by blanketing the fire with **foam**, **sand**, etc. The temperature can be lowered by using **water**. Using the **nitrogen** tank to reduce the **oxygen concentration** can extinguish the fire.

**Ignition Temperature **can be described as the minimum temperature required by the substance to **burn** or catch fire. Burning or **Combustion** can be defined as a **spontaneous** as well as an **exothermic process**.

This process is **exothermic** in nature as heat is **released** during the process. We give energy to the substance just to begin the process and **combustion** will happen until the whole substance undergoes combustion.

**Combustion** is dependent on many factors such as the nature of the substance, the amount of **oxygen** present as combustion occurs in the presence of oxygen, the** surface area **of the substance, etc.

The amount of **oxygen** is an important factor as it enables how efficiently the combustible material undergoes **combustion**. Since combustion is an **exothermic** process, there are a variety of **fuels** and by burning them we generate **energy**.

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The severity of a tropical storm is related to the depressed atmospheric pressure at its center. In August 1985, Typhoon Odessa in the Pacific Ocean featured maximum winds of about 90 mi/hr and pressure that was 40.0 mbar lower at the center than normal atmospheric pressure. In contrast, the central pressure of Hurricane Andrew (pictured) was 90.0 mbar lower than its surroundings when it hit south Florida with winds as high as 165 mi/hr.

If a small weather balloon with a volume of 50.0 L at a pressure of 1.00 atmosphere was deployed at the edge of Typhoon Odessa, what was the volume of the balloon when it reached the center?

If a **small weather balloon** with a **volume** of 50.0 L at a pressure of 1.00 atm was **developed at the edge** of Typhoon odissa , the** **volume** **of the balloon when it reaches the center was** **52.63 L

According to** boyle's law :**

**P1V1 = P2V2**

here:

P1 = 1 atm

V1 = 50.0 L

P2 = ( 1atm - 0.050 atm ) = 0.95 atm

V2 = ?

**V2 = P1V1/P2**

V2 = (1 × 50.0 ) / 0.95

= 52. 63 L

Thus**,** If a **small weather balloon **with a volume of 50.0 L at a pressure of 1.00 atm was developed at the edge of** Typhoon odissa ,** the **volume** of the balloon** **when it **reaches the center** was 52.63L

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The diagram shows a controlled experiment designed to test how much time it takes for seeds to

germinate under four different conditions. Four bean seeds were placed in each of four pots. Each pot

contained 100 cubic centimeters of soil. All four pots were placed on the same sunny windowsill. A

different amount of water was placed in each pot.

Identify the independent variable:

The **independent variable** is amount of water

It is a variable that stands **alone** and isn't changed by the other variables you are trying to measure called independent variable

Here given data is four bean seeds were placed in each of four pots. Each pot contained 100 cubic centimeters of soil All four pots were placed on the same sunny windowsill A different amount of water was placed in each pot then in the first pot 0ml of water are placed and in the second pot 10ml water are placed and in the third pot 20ml water are placed and in the fourth pot 40ml water are placed so, because of high concentration of water the seed germinate in fourth pot are fast other than three pot and all constant in all four pot are soil seed sunrays or container this all are same only amount of water are different and dependent variable is germination

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Convert 75 ML to GL

Problems

What is the density of an object with a mass of 250 g and a volume of 300 mL?

The definition of **density **is the **mass **of a substance per unit of **volume**. The Latin letter **D **may also be used, however the symbol is most usually employed to denote density. Mass divided by volume gives the density value:

**D = m/v**

= 250/300

** = 0.833 g/ml**

A physical body's **mass **is its overall amount of **matter**. **Inertia**, or the body's **resistance to acceleration** when a net **force **is applied, is also measured using this phrase. The strength of a body's **gravitational pull** on other bodies depends on its mass. The **kilogram **serves as the foundational mass unit in the SI.

The amount of three-dimensional **space **that is occupied is measured in **volume**. **Imperial **or SI-derived units are frequently used in its mathematical expression. The concepts of volume and length are related.

Typically, there are two forms of density:** absolute density** and **relative density**. Relative density, also known as **specific gravity**, is the ratio of a substance's density to the density of a reference material. Water is frequently used as the reference material.

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Calculate the molarity of an acetic acid solution if 38.9 mL of an HC2H3O2 solution is titrated with 26.7 mL of a 0.114 MKOH solution:HC2H3O2(aq)+ KOH(aq)→H2O(l)+ KC2H3O2(aq) Express your answer with the appropriate units.

Explanation

*Given:*

CH₃COOH(aq) + KOH(aq) → H2O(l)+ KC2H3O2(aq)

Volume of acetic acid = 38.9 mL = 0.0389 L

Voume of KOH = 26.7 mL = 0.0267 L

Molarity of KOH = 0.114 M

*Required*: The molarity of an acetic.

Solution

**Step 1**: Find the moles of KOH

n = C x V where n is the moles, C is the concentration and V is the volume

n = 0.114 M x 0.0267 L

n = 0.00304 mol

**Step 2**: Find the moles of acetic acid using stoichiometry

The molar ratio between acetic acid and KOH is 1:1

Therefore the moles of acetic acid = 0.00304 mol

**Step 3**: Calculate the molarity of acetic acid

C = n/V

C = 0.00304/0.0389

C = 0.0781 M

Solution

**Molarity of acetic acid = 0.0781**

A student determines the density of an object to be 0.761g/mL. This type of data is

If a student determines the **density **of an object is 0.761g/mL, then this type of data is quantitative** continuous data.**

In mathematics, the expression **quantitative continuous data i**s used to denote a type of data that can be expressed as a continuous range of variations instead of discrete variation.

Quantitative continuous data are a special class of m**athematical numeration **data that may include both decimals and factions and therefore represent an infinite number of possibilities in a given range for a particular parameter to be measured in normal conditions.

Therefore, with this data, we can see that quantitative continuous data are expressed by **decimals **and or **fractions **and they represent infinite values for a particular mathematical range, thereby being distinct from discrete values that are represented by different types of finite values which do not include decimals.

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how can carbon release the iron atoms from iron oxides

Iron atoms can be released from iron oxides as **carbon has high affinity for oxygen compared to Iron**

When **two atoms** come in contact with each other, interaction happens between the electrons and nucleus. This might result in **bond formation **between them. The resultant compound will be a **molecule** i.e., when two atoms’ bonds together, it would result in a molecule.

**Iron oxide** has **2 iron atoms** and **3 oxygen atoms**. When heat is applied, bonds between the molecules would break and result in the formation of atom.

**Carbon** has **higher affinity for oxygen** compared to Iron. Thus, carbon would interact with formed oxygen atoms and result in carbon dioxide. The iron atoms are free now as it does not have anything to react with.

Thus, **carbon** with **high affinity for oxygen** would help to **separate iron** from **iron oxide.**

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Calculate the wavelength of a photon (in nm) that has the frequency of 5.66x10^14 Hz

ANSWER

The wavelength of the photon is **0.0053nm**

**STEP-BY-STEP EXPLANATION:**

Given data

**Frequency of the photon = 5.66 x 10^-4 Hz**

**Let x represents the wavelength of the photon**

To determine the wavelength of the photon, we need to apply the below formula

[tex]\begin{gathered} C\text{ = f x }\lambda \\ \text{where} \\ c=\text{ sp}eed\text{ of light} \\ f\text{ = frequency} \\ \lambda\text{ = wavelength} \end{gathered}[/tex]Recall that, **the speed of light is 3 x 10^8 m/s**

The next process is to substitute the values into the above formula

[tex]\begin{gathered} c\text{ = f}\lambda \\ \text{Divide both sides by f} \\ \frac{c}{f}\text{ = }\frac{f\lambda}{f} \\ \lambda\text{ = }\frac{c}{f} \\ \end{gathered}[/tex][tex]\begin{gathered} \lambda\text{ = }\frac{3\cdot10^8}{5.66\cdot10^{14}} \\ \lambda\text{ = }\frac{3}{5.66}\cdot10^{8\text{ - 14}}^{} \\ \lambda\text{ = 0.53 }\cdot10^{-6} \\ \lambda\text{ = 5.3 }\cdot10^{-7}m \\ \lambda\text{ =}0.0053nm \end{gathered}[/tex]Therefore, the wavelength of the photon is 0.0053nm

Describe the structure of fatty acids, triglycerides phospholipids, and steroids.

The structure of **fatty acids** involves long carbon-based chains with a carboxyl group **(―COOH)** located in the end, **triglycerides phospholipids **contain a phosphate group and glycerol, while **steroids **are cyclic and they contain C atoms linked via 4 fused rings.

**Lipids **are a broad category of biomolecules that include fatty acids, triglycerides phospholipids, and steroids. For example,** fatty acids** are long carbonated chains that contain exactly identical CH2 groups in the interior of the molecule and a carboxyl group (―COOH) located at one extreme side.

**Triglycerides phospholipids **are composed of three fatty acids chains linked to a glycerol backbone and also a phosphate group that may confer polar properties to the molecule.

Finally, **steroids **are another important class of lipids composed of several carbon-based fused rings.

Therefore, we can conclude that fatty acids,** triglycerides phospholipids, **and steroids are structurally different **lipids **that are mainly composed of carbon-based structures.

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If 7.60 kJ of heat is needed to raise the temperature of a sample of metal from 12°C to 27°C, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 39°C to 55°C?

**Answer: 8.1067 kJ**

**Explanation: Please mark this brainliest. the joules necessary to raise the heat of a substance only depends on how much change of temp you need and how much substance is there. In this question the amount is constant. Since it is 7.6kJ to change it by 27-12=15C, and 55-39=16C. The number of kilojoules is 16/15 *7.6=8.1067**

Anode? / Cathode? - Oxidation? / Reduction?.

This example is similar to the previous one. Recall that oxidation reactions occur at the anode and reduction reactions occur at the cathode.

**Oxidation is the process in which a compound donates electrons and as a result increases its oxidation state. When a compound receives electrons, it will be reduced and its oxidation state will decrease.**

In this case, we have an element in its natural state (Zn), that is, it has a neutral charge equal to zero. After the reaction we have the same element with an oxidation state greater than and equal to +2, therefore the element was oxidized and donated two electrons corresponding to the difference in oxidation state.

**Answer: Anode, oxidation**

Look at the line segment in the coordinate grid.

A(-4,-2)

B(5,5)

What is the length of segment AB ?

The **length** of **segment** AB is determined as **11.4 units.**

The **distance** between two points is the length of the line segment that connects the two points in a plane.

The **length** of segment AB is the **distance** between point A and point B, which is calculated as follows;

|AB| = √[(x₂ - x₁)² + (y₂ - y₁)²]

where;

x₁ is the x - component of point Ax₂ is the x - component of point By₁ is the y - component of point Ay₂ is the y- component of the point B|AB| = √[(x₂ - x₁)² + (y₂ - y₁)²]

|AB| = √[(5 - - 4)² + (5 - -2)²]

|AB| = √[(9)² + (7)²]

|AB| = 11.4 units

Thus, the **length** of **segment** AB is the distance between point A and B.

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Which of the following materials is a substance?

gasoline

air

silver

stainless steel

Answer: The correct answer is **silver**.

Explanation:

Matter that has a consistent and uniform composition—the same number and kind of atoms bound in the same way—is referred to as a **substance**. The substances are either **elements** or **compounds**. Only silver is a substance out of the alternatives offered because it is an element and all silver **materials** only contain silver atoms. In the same way that **gasoline** is a mixture of liquids whose composition can change, **air** is a mixture of different gases, and **steel** is an alloy (a mixture of compounds and elements) whose composition can change. Therefore the silver is the correct answer.

You have 2.2mol Xe and 2.0mol F2, but when you carry out the reaction you end up with only 0.25mol XeF4. What is the percent yield of this experiment?: Xe(g) + 2F2(g) -> XeF4(g)

If 2.2 mol Xe and 2.0 mol [tex]F_2[/tex] reacts to produce 0.25 mol [tex]XeF_4[/tex], the **percent yield **of the experiment will be **25%.**

The **percent yield **of an experiment is the amount of the **actual yield **of the experiment relative to the **theoretical yield **of the same experiment.

Mathematically;** percent yield = actual yield/theoretical yield x 100%**

In the illustrated experiment, the **mole ratio** of Xe and [tex]F_2[/tex] is 1:2. With 2.2 mol Xe reacting against 2.0 mol [tex]F_2[/tex] , it means [tex]F_2[/tex] is limited in availability with Xe being excessive.

The **mole ratio** of [tex]F_2[/tex] and [tex]XeF_4[/tex] is 2:1. Thus, the mole of [tex]XeF_4[/tex] that should be theoretically produced would be half of the mole of [tex]F_2[/tex] that reacts.

Thus, mole of [tex]XeF_4[/tex] = 2/1

= 1

But only 0.25 mol of [tex]XeF_4[/tex] were produced.

**Percent yield **= 0.25/1 x 100%

= **25%**

The **percent yield **of the experiment is, therefore, a paltry **25%.**

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Write the ionic and net ionic equations for the following reaction:

Co(NO3)2(aq) +Na2CO3(aq)->

Co(NO3)2(aq) +Na2CO3(aq)+CH3COOH->

The **ionic **and **net ionic equations **for the following reaction is

Co(NO3)2(aq) +Na2CO3(aq)->NaNo3 + CaCO3

Co(NO3)2(aq) +Na2CO3(aq)+CH3COOH-> NaNo3 + CH3COOCo + H2O

**Ionic equation **is defined as a **chemical equation **that expresses electrolytes in **aqueous solution **as dissociated **ions.**

An **ionic equation **can also be defined as **one **that **solely **depicts the atoms and ions that really participate.

**Net ionic equation** is defined as only those **elements**, molecules, and ions actually involved in the **chemical process **are shown in the chemical equation.

It can also be defined as an **equation **that **simply **includes the components that are really involved in the reaction.

Thus, the **ionic **and **net ionic equations **for the following reaction is

Co(NO3)2(aq) +Na2CO3(aq)->NaNo3 + CaCO3

Co(NO3)2(aq) +Na2CO3(aq)+CH3COOH-> NaNo3 + CH3COOCo + H2O

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Draw the net force arrow on the diagram and state the direction. Net force direction =

The magnitude of the **net force** is 20.12 N in a direction 26.56° South of East.

The **net force** in the given **forces** in the diagram s given below as follows:

Force 1, F₁ = 18 N **force** acting in a direction to the east

Force 2, F₂ = 9 N force acting in a direction south of the object.

The two forces form two sides of a right-angle triangle

**Net force** is determined using Pythagoras' rule as follows:

Net force, F = √(F₁² + F₂²)

Net force = √ (18² + 9²)

Net force = √ (324 + 81)

Net force = √ 405

Net force = 20.12 N

The direction of the **Net force**, θ, is determined as follows;

θ = tan⁻¹ (9 / 18)

θ = tan⁻¹ 0.5

θ = 26.56° South of East

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What might happen if your lab group had such a cluttered lab area

**Answer:**

depending on what you guys are doing someone could get hurt or knock something over and break it

**Explanation:**

which of the following reactions is balanced and shows complete combustion

The** following reactions is balanced** and shows complete combustion are

**A)**2C₅H₁₂ + 11O₂ -----> 10CO + 12H₂O

**D)** C₅H₁₂ + 8O₂ -----> 5CO₂ + 6H₂O

A) 2C₅H₁₂ + 11O₂ -----> 10CO + 12H₂O

In this reaction,

** Reactants products **

C 10 10

H 24 24

O 22 22

**Reactants and products have same no. of atoms .**

therefore this **reaction is balanced** and shows complete combustion.

B) 2C₅H₁₂ + 11O₂ -----> 12CO + 10H₂O

**Reactants Products**

C 10 12

H 24 20

O 22 22

**this reaction is not balanced.**

C) C₅H₁₂ + 8O₂ -----> 6CO₂ + 5H₂O

** Reactants Products**

C 5 6

H 12 10

O 16 18

**This reaction is not balanced,**

D) C₅H₁₂ + 8O₂ -----> 5CO₂ + 6H₂O

** Reactants Products**

C 5 5

H 12 12

O 16 16

**Reactants and products have same no. of atoms **.

therefore this reaction is balanced and shows complete combustion.

Thus, **The following reactions is balanced** and shows complete combustion are

A)2C₅H₁₂ + 11O₂ -----> 10CO + 12H₂O

B) C₅H₁₂ + 8O₂ -----> 5CO₂ + 6H₂O

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Answer:

D

Explanation:

I got the answer right

How many degrees will 340 J raise the temperature of 6.8 g of water

The temperature raised is 11.9 degrees as the **heat capacity** is 340J

**What is heat capacity ?**

**Heat Capacity **is the quantity of energy needed to raise a substance's temperature by one degree Celsius. It can also be thought of as the proportion of energy transmitted to an item to the rise in temperature that follows.

The **heat capacity **measurement is in Joules per degree Celsius as well. Because it is based on the object's mass. Additionally, it is frequently stated in terms of 100 grammes in order to facilitate comparisons between objects of similar mass.

Q = m*c*T

Q = heat energy

m = mass of substance

c = specific heat capacity

T = temperature

Q = 6.8*4.2*T

T = 340/6.8*4.2

T =11.90 celsius

The temperature raised is 11.9 degrees as the **heat capacity** is 340J

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To find the volume of your element, you completed water displacement, which is calculated by Final volume - Initial volume. Originally 14.0 mL of water was placed into the graduated cylinder. After you object was placed into the graduated cylinder, the water level raised to 20.6 mL. Calculate the volume of the object.

The **volume **of the object is 6.6 cm³

The **amount** of space occupied by a three dimensional figure as measured in cubic units and when an object enters water it pushes out water to make room for itself and the object pushes out a volume of water that is equal to its own volume and this is called displacement

So here given data is 14.0 mL of water was placed into the graduated cylinder and then the water level raised to 20.6 mL so we have to find volume = ? here final volume = 20.6 mL and initial volume = 14.0 mL

Volume = final volume - initial volume

Volume = 20.6 mL - 14.0 mL

Volume = 6.6 cm³

The volume of the object is 6.6 cm³

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Question 1

Concentrated HCl(aq) is 37.2% HCI by mass. If the density of the solution is

1.19g/mL, how many grams of HCI is in 1.75 L of concentrated HCI?

438 m g l of HCI is in 1.75 L of **concentrated** HCI .

A specific amount of solution's **concentration** relates to the amount of **acid** or **basic **that is present. If there is a lot of acid or base in a little amount of solution, it is said to be concentrated. If there is little acid or base in a given **volume** of solution, it is said to be **diluted**. Acidic is defined as having a **pH **below 7. Once the pH reaches 7, it is referred to as basic. **Hydronium** concentrations in acidic solutions are high, while hydroxide concentrations are low. Hydroxide concentrations in basic solutions are high, while hydronium concentrations are lower. The stronger an acid is, the lower the **pH** is for a given concentration in **aqueous solution**. Acid solutions have a pH that decreases with increasing concentration.

the quotient….

**Molality** = moles of **solute**/kilograms of **solvent** .

Whereas…

Molarity = **moles **of solute/**volume** of solution in liters.

It's only an estimate, but 1.18 g/mL x 1000 mL x 0.37 = around 437 g.

Then, mols in that 1 L = grams/molar mass

= approximately 437/36.5

= roughly 12 M, according to a different calculation.

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Should you use the flash above why or why not

Should you use the **flash **above because in the above its dark at night

Flash is a popular authoring **software **developed by macromedia is used to create vector graphics based animation programs with full-screen navigation interfaces, graphic illustrations, and simple interactivity in an resizable file format that is small enough to stream across a normal modem connection and we should use flash because creating games, making presentations, animations, visualizations, webpage components, and many other interactive applications and at the above we should use flash because its so dark at night

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5) According to the quantum theory of atomic structure, an atom has all EXCEPT which of these

characteristics?

a) Electrons in atoms have quantized energies

b) Electrons in atoms are bound to the nucleus by electrostatic attraction

c) When electrons are excited, only discrete amounts of energy can be absorbed

d) The ground state of an atom represents the absence of quantized energy

According to the **quantum theory** of atomic structure, an atom has all the characteristics except d) The ground state of an atom represents the absence of **quantized energy.**

Science that studies how matter and light behave on an atomic and **subatomic** scale is known as quantum mechanics.

It makes an effort to explain and describe the characteristics of molecules, atoms, and their building blocks, including electrons, protons, neutrons, and other less familiar particles like quarks and gluons.

What is the quantum theory?Modern physics’ theoretical underpinning, **quantum theory**, describes the nature and behavior of matter and energy at the atomic and subatomic scales.

Quantum physics and alongside quantum mechanics are the terms that refer to the nature and behavior of **matter **and the energy present at that level.

Atoms can be stable because the attraction caused by potential and the spreading out caused by **quantum mechanics** balance each other out.

The orbit of an **electron **around an atom in **classical mechanics** is unstable because the energy required to maintain the orbit is released as light.

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What are the products of the neutralization reaction between HCI and

Ca(OH)2?

**Explanation:**

The final products of the reaction between HCl and Ca(OH)2 can be Ca(OH)Cl, CaCl2, or both simultaneously depending on the temperature, HCl concentration and reaction time

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que pasaria si tuviera los puntos 75a 89b 34 c 45d seria una linea recta
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