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ddd [48]
3 years ago
12

According to the law of conservation of energy, the total amount of energy in the universe is Question 24 options: increasing de

creasing constant
Chemistry
1 answer:
GalinKa [24]3 years ago
7 0
<h3><u>Answer;</u></h3>

Constant

<h3><u>Explanation;</u></h3>
  • According to the law of conservation of energy, the total amount of energy in the universe is constant.
  • The law of Conservation of Energy states that Energy cannot be created or destroyed. The total amount of energy in the universe never changes, although it may change from one form to another.
  • Energy never disappears, but it does change from one form to another. For example; when we eat our food has stored energy in it.
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Question 5
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Answer:

2.03 atm

Explanation:

Number of moles of He = 1g/4g/mol = 0.25 moles

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Number of moles of Ar=19.0g/40g/mol = 0.48 moles

Total number of moles = 0.25 + 0.37 + 0.48 = 1.1 moles

From;

PV=nRT

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Answer:

We need 27.56 moles hydrogen to produce 13.78 mol of ethane. (option 3)

Explanation:

Step 1: Data given

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Step 2: The balanced equation

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