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Aleks04 [339]
3 years ago
12

What is the mass percent composition of an element in a molecule?

Chemistry
2 answers:
Burka [1]3 years ago
7 0

Answer:

<em>b </em>

Explanation:

<em>a p e x :)</em>

Minchanka [31]3 years ago
6 0

Answer:

Try B. The fraction of the molecules mass that comes from one atom of the element

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2 moles of sodium chloride are dissolved in 8 liters of water. What is its molarity (M) ?
otez555 [7]

Answer:

0.25M

Explanation:

Since molarity is defined as the amount of substance in 1 liter of a solution, and amount in chemistry refers to the number of moles, molarity can be found using the equation below:

Molarity= number of moles ÷ volume in liters

Given: number of moles= 2

Volume= 8L

∴ Molarity of NaCl

= 2 ÷8

= 0.25M

4 0
3 years ago
What are water and carbon dioxide converted into by the end of
timama [110]

Answer:

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Explanation:

In photosynthesis, solar energy is harvested as chemical energy in a process that converts water and carbon dioxide to glucose. Oxygen is released as a byproduct.

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3 years ago
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<span>A molecular binary compound does not consist of discrete ions, but of molecules. H2O is molecular, as is NH3.</span>
7 0
3 years ago
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How many grams of sodium bicarbonate are needed to completely react with a 0.892 m phosphoric acid solution that contains to 45.
SVETLANKA909090 [29]

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