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3 years ago

Identify the four parts of the potential energy diagram.

Chemistry

2 answers:

Fed [463]3 years ago

4 0

I think this is how to do it. but I'm sorry if it's not exactly right

mixer [17]3 years ago

4 0

Answer : The potential energy diagram is shown below.

Explanation :

Activation energy : The energy required to initiate the reaction is known as activation energy.

Or, it is the amount of energy required to reach the transition state.

Or, It is the minimum amount of energy that is absorbed by the reactant molecules so that their energy becomes equal to the threshold energy.

Or, the difference between the reactant and the transition state.

Enthalpy of a reaction : It is the energy change which takes place when the reactants go to the products. It is represented as, $\Delta H$

Or, we can say that the difference between the product and the reactant.

If the heat is absorbed during the reaction then the enthalpy of reaction is positive and the reaction endothermic reaction.

If the heat is released during the reaction then the enthalpy of reaction is negative and the reaction exothermic reaction.

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Which of the following substances is less dense in its solid form than in its liquid form?

mojhsa [17]

Dude... h2o, thats why ICE FLOATS ON WATER!!!!

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4 years ago

Read 2 more answers

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Aleksandr [31]

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3 years ago

Write a balanced equation for the complete oxidation reaction that occurs when methane (CH4) burns in air.

Lelechka [254]

Answer: The balanced equation for the complete oxidation reaction that occurs when methane (CH4) burns in air is $CH_{4} + 2O_{2} \rightarrow CO_{2} + 2H_{2}O$ .

Explanation:

When a substance tends to gain oxygen atom in a chemical reaction and loses hydrogen atom then it is called oxidation reaction.

For example, chemical equation for oxidation of methane is as follows.

$CH_{4} + O_{2} \rightarrow CO_{2} + H_{2}O$

Number of atoms present on reactant side are as follows.

C = 1
H = 4
O = 2

Number of atoms present on product side are as follows.

C = 1
H = 2
O = 3

To balance this equation, multiply $O_{2}$ by 2 on reactant side. Also, multiply $H_{2}O$ by 2 on product side. Hence, the equation can be rewritten as follows.

$CH_{4} + 2O_{2} \rightarrow CO_{2} + 2H_{2}O$

Now, the number of atoms present on reactant side are as follows.

C = 1
H = 4
O = 4

Number of atoms present on product side are as follows.

C = 1
H = 4
O = 4

Since, the atoms present on both reactant and product side are equal. Therefore, this equation is now balanced.

Thus, we can conclude that balanced equation for the complete oxidation reaction that occurs when methane (CH4) burns in air is $CH_{4} + 2O_{2} \rightarrow CO_{2} + 2H_{2}O$ .

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3 years ago

1. Which of the following is not true of a covalent compound?

sweet-ann [11.9K]

1. Which of the following is not true of a covalent compound?
It is made of only nonmetals.

2. What type of compound is almost always found as a solid?

Ionic compound is almost always found as a solid because they have very tightly bound structures.

3. Which of the following is not a characteristic of an ionic compound?

It is formed when atoms share electrons.

4. Covalent compounds are formed when
a nonmetal bonds with a nonmetal.

5. What is the relationship between a compound and the elements it is made from?

The compound may have properties that are very different from those of the elements.

3 0

4 years ago

8. Given the balanced chemical equation Br2 + 2 NaI -> 2 NaBr + I2 How many moles of sodium bromide (NaBr) could be produced

bezimeni [28]

Since we are already given the balanced equation:

$Br_{2}+2NaI$ → $NaBr+I_{2}$