Moles Sets Random Retrieval

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Moles Sets Random Retrieval

This quiz contains all the questions in the Moles Sets section. The website will pick 10 questions at random.

1 / 10

Zinc metal reacts with hydrochloric acid

Zn+ 2HCl=>ZnCl2+H2

How many moles of Zn will react with 10cm3 of 4mol dm-3 HCl?

2 / 10

How many moles of sodium ions are contained in 1dm3 of 2mol dm-3 sodium sulfate (Na2SO4) solution?

 

3 / 10

What mass of zinc will displace 5.4g of silver from silver nitrate solution?

4 / 10

Mg + N2 => Mg3N2

5 / 10

Combustion of 7.8g of potassium produced 14.2g of an oxide. Which of the following is the simplest formula of the oxide of potassium formed?

6 / 10

phosphorus (III) chloride

7 / 10

sulfur dichloride

8 / 10

magnesium nitride

9 / 10

How many carbon-12 atoms would have the same mass as 6 Br atoms? Enter a whole number.

 

10 / 10

Neon (accurate relative atomic mass = 20.18) is made up of three isotopes: Ne-20, Ne-21 and Ne-22.

One of these makes up 90.92% of the element. Which one?

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