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wolverine [178]
4 years ago
10

Which one of these is a compound? a) air b) carbon dioxide c) oxygen and d) carbon

Chemistry
2 answers:
Vanyuwa [196]4 years ago
6 0
I think is b  carbon dioxide  
USPshnik [31]4 years ago
4 0
I believe its B from what i remember in biology class
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What is the molarity of 200. mL of solution containing 4.50 moles of ZnCl2?
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Answer:

Molarity of solution = 0.9 M

Explanation:

Given data:

Moles of ZnCl₂ = 4.50 mol

Volume of solution = 200 mL

Molarity of solution = ?

Solution:

Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

Formula:

Molarity = number of moles of solute / L of solution

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What fraction of the carbon dioxide exhaled by animals is generated by the reactions of the citric acid cycle
puteri [66]

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1/3

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1 molecule of carbon dioxide is eliminated from 1 molecule of pyruvate.

Also,  

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Thus,

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4 0
4 years ago
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