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sineoko [7]
2 years ago
14

Can someone help me with this ASAP Pleasee !!

Chemistry
1 answer:
rewona [7]2 years ago
4 0

Explanation:I help You :) only two answer

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3 years ago
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astraxan [27]

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8 0
3 years ago
What is the percent composition of hydrogen in NH4HCO3?
Readme [11.4K]
To find the Percent Composition of an atom, you use this formula:
Mass of element in the compound you're studying on ( in this case it's 5 since there is 5 Hydrogens) over the mass of the compound (which is here 79), Multiplied by 100 since you want a percent. 
So we get: 
\frac{5}{79} * 100
So you get about: 
0.063 * 100
6.3

So, the percent composition of Hydrogen in NH4HCO3 is 6.3%

Hope this Helps! :D


7 0
3 years ago
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A student has a salt water solution. When the student adds more salt to the solution it completely dissolves. What type of solut
AlladinOne [14]

Answer:

<h2>Saturated</h2>

Explanation:

<em>A</em><em>saturated solution is a solution that contains the maximum amount of solute that is capable of being dissolved. Table salt (NaCl) readily dissolves in water.</em>

3 0
3 years ago
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The heat of vaporization for water is 40.7 kJ/mol. How much heat energy must 150.0 g of water absorb to boil away completely? Us
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i picked b

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but its based on your own opinion, good luck.

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