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seraphim [82]
3 years ago
13

Select the steps that are associated with energy entering the system. Check all that apply.

Chemistry
2 answers:
quester [9]3 years ago
8 0

Answer: option c. the mixing of solute and solvent molecules

Explanation:

JulsSmile [24]3 years ago
3 0

Answer:

A and B

the separation of solvent molecules and the separation of solute molecules

Explanation:

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Andrej [43]
What grade is this? I forgot but if u tell me the grade i can prob remember
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3 years ago
Ethanol (CH3CH2OH), the intoxicant in alcoholic beverages, is also used to make other organic compounds. In concentrated sulfuri
Fed [463]

Answer:

a) 88.48%

b) 0.05625 mol

Explanation:

2CH₃CH₂OH(l) → CH₃CH₂OCH₂CH₃(l) + H₂O(g)         Reaction 1

CH₃CH₂OH(l) → CH₂═CH₂(g) + H₂O(g)                        Reaction 2

a) CH₃CH₂OH = 46.0684 g/mol

   CH₃CH₂OCH₂CH₃ = 74.12 g/mol

1 mol CH₃CH₂OH ______  46.0684 g

x                            ______   50.0 g

x = 1.085 mol  CH₃CH₂OH

1 mol  CH₃CH₂OCH₂CH₃ ______  74.12 g g

y                           ______   35.9 g

y = 0.48 mol   CH₃CH₂OCH₂CH₃

100% yield _____ 0.5425 mol CH₃CH₂OCH₂CH₃

w                _____  0.48 mol CH₃CH₂OCH₂CH₃

w = 88.48%

b) Only 0.96 mol of ethanol reacted to form diethyl ether. This means that 0.125 mol of ethanol did not react. 45% of 0.125 mol reacted to form ethylene. Therefore, 0.05625 mol of ethanol reacted by the side reaction (reaction 2). Since 1 mol of ethanol leads to 1 mol of ethylene, 0.05625 mol of ethanol produces 0.05625 mol of ethylene.

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3 years ago
Unit Test
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Heat flows from faster molecules to slower molecules when they collide.

Explanation:

logics

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What is the mass of an object that has a total heat loss of 550. cal, a specific heat of
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the mass is .587 J/g°C

Explanation:

................

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What are three (3) rights workers have in the workplace?
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The right to refuse work that could affect their health and safety and that of others.

8 0
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