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kotegsom [21]
3 years ago
9

How does the potential energy of the reactants compare to the potential energy of the products in an exothermic reaction, and wh

ere does the energy that is given off come from?
Chemistry
1 answer:
Ksju [112]3 years ago
4 0
In an endothermic reaction the products have less potential energy than the reactants. I'm not sure about the second question though. 
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1. Pentane gas (C5H12) combusts with oxygen gas (O2) to form water (H2O) and carbon dioxide (CO2). Write a balanced chemical equ
jeka94

Answer:

C5H12 + 8O2 → 6H2O + 5CO2

Explanation:

Pentane + Oxygen --> Water + Carbon dioxide

C5H12 + O2  --> H2O + CO2

The balanced equation is given as;

C5H12 + 8O2 → 6H2O + 5CO2

The principle is the law of conservation of matter that states that matter cannot be created nor destroyed. Hence, the reactants pretty much recombine to form the products.

The number of atoms remains conserved.

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The sun creates solar ____.<br> matter<br> wind
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Answer:

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4 years ago
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What is the percent mass concentration of a solution that has 40g of NaOHin 500g of solution?
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Answer:

540

Explanation:

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3 years ago
An example of a double comparison is _____.
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4 0
3 years ago
If 2.0 mL of 6.0M HCl is used to make a 500.0-mL aqueous solution, what is the molarity?
RideAnS [48]

Answer:

0.024M

Explanation:

Data obtained from the question include:

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The molarity of the diluted solution can be obtained as follows:

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Divide both side by 500

C2 = (6 x 2) /500

C2 = 0.024M

The molarity of the diluted solution is 0.024M

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3 years ago
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