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3 years ago

How do you work out the relative atomic mass?

1 answer:

6 0

To calculate the relative formula mass:

Write the formula of the compound.
Write the numbers of each atom in the formula.
Insert the relative atomic mass for each type of atom.
Calculate the total mass for each element.
Add up the total mass for the compound.

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Thats the guide to the project , someone help please 20 points

Fittoniya [83]

Answer:

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Explanation:

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3 years ago

Read 2 more answers

The smallest particle to retain the properties of an element is an?

svlad2 [7]

I’m so sorry explain it more

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2 years ago

How many moles of hydrogen gas will be produced if 5.00 moles of zinc reactions with an excess amount of sulfuric acid

harkovskaia [24]

Answer:

Moles of Hydrogen produced is 5 moles

Explanation:

The balanced Chemical equation for reaction between zinc and sulfuric acid is :

$Zn(s) + H_{2}SO_{4}(aq) \rightarrow ZnSO_{4}(aq) + H_{2}(g)$

This equation tells that ; when 1 mole of Zn react with 1 mole of sulfuric acid, it produces 1 mole of zinc sulfate and 1 mole of hydrogen.

Since sulfuric acid is in excess so Zinc is the limiting reagent

(Limiting reagent : Substance which get consumed when the reaction completes, limiting reagent helps in predicting the amount of products formed)

Limiting reagent (Zn) will decide the amount of Hydrogen produced

$Zn(s) + H_{2}SO_{4}(aq) \rightarrow ZnSO_{4}(aq) + H_{2}(g)$

$1\ mole\ zinc\rightarrow 1\ mole\ H_{2}$

So,

$5\ mole\ zinc\rightarrow 5\ mole\ H_{2}$

Hence moles of Hydrogen produced is 5 moles

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3 years ago

Is the largest of Saturn's moons, Charon, larger than Mercury?

vazorg [7]

Answer:

no, Charon is significantly smaller than Mercury

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2 years ago

Which of the following are evidence that chemical change has occurred

dolphi86 [110]

Answer:

gas given off

Explanation:

that's the answer

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3 years ago