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Marta_Voda [28]
3 years ago
6

 the force of gravity will cause two different masses to

Chemistry
2 answers:
Anettt [7]3 years ago
7 0
The correct would be d
zepelin [54]3 years ago
4 0

Answer:

be attracted to one another

Explanation:

i took the k-12 test and this is the answer ;)

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wind

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What is the percent composition by mass of hydrogen in nh4hco3
Simora [160]

<u>Answer:</u> The percent composition by mass of hydrogen in given compound is 6.33 %

<u>Explanation:</u>

We are given:

A chemical compound having chemical formula of NH_4HCO_3

It is made up by the combination of 1 nitrogen atom, 5 hydrogen atoms, 1 carbon atom and 3 oxygen atoms

To calculate the percentage composition by mass of hydrogen in the compound, we use the equation:

\%\text{ composition of Hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Mass of compound}}\times 100

Mass of compound = [(1\times 14)+(5\times 1)+(1\times 12)+(3\times 16)]=79g/mol

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Putting values in above equation, we get:

\%\text{ composition of Hydrogen}=\frac{5g/mol}{79g/mol}\times 100=6.33\%

Hence, the percent composition by mass of hydrogen in given compound is 6.33 %

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3 years ago
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GrogVix [38]
<span>B.by arranging the elements according to atomic number instead of atomic mass</span> awnser is B
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Differentiating Types of Gymnosperms
yan [13]

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2c2h6 + 7o2 = 4co2 + 6h2o <br> what mass of co2 will be produced from the reaction of 37.5 g c2h6
ivanzaharov [21]

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