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Firlakuza [10]
3 years ago
15

Which tool is used to measure mass?

Chemistry
2 answers:
Ostrovityanka [42]3 years ago
7 0

Answer: A balance is the tool used to determine an object's mass

Explanation:

slega [8]3 years ago
3 0

Answer:

kilogram is used to measure to mass

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When magnesium (mg) metal is placed in hydrochloric acid (hcl), it forms magnesium chloride (mgcl2) and a gas. what gas is forme
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Magnesium in hydrochloric acid forms H2 (hydrogen) gas according to the balanced chemical equation:
Mg + 2HCl→H2 + MgCl2
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Bonds between two atoms that are equally electronegative are _____. bonds between two atoms that are equally electronegative are
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Which kind of energy does an object have because of its height above Earth's
jonny [76]

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C po

Explanation:

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3 years ago
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How many grams of H2O would be produced if you started with 7 moles of ethylene (C2H4 )?
nydimaria [60]

Answer:

Explanation:

so if the reaction is C2H4+3O2-->2H2O+2CO2

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(see the attachment)

4 0
3 years ago
The chemical equation for the formation of ammonia is unbalanced.
galben [10]

Answer:

The answer to your question is 2 molecules

Explanation:

Unbalanced chemical reaction

                   H₂(g)   +   N₂(g)   ⇒   NH₃ (g)

         Reactants         Elements          Products

                2                      H                       3

                2                      N                       1

Balanced chemical reaction

                   3H₂(g)   +   N₂(g)   ⇒   2NH₃ (g)

         Reactants         Elements          Products

                6                      H                       6

                2                      N                       2

From the balanced chemical reaction we conclude that when 3 molecules of hydrogen react with one molecule of nitrogen, 2 molecules of ammonia will be formed.

4 0
3 years ago
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