Calculation In Chemistry IGCSE Quiz!

8 Questions | By Wissamercy | Updated: Mar 21, 2022 | Attempts: 729

Questions

Settings

Calculation In Chemistry IGCSE Quiz! - Quiz

Are you familiar with calculations in chemistry, and do you think you can pass this quiz? In a chemical reaction, one or more reactants are converted into products. The objective of a chemical equation is to express this relation in terms of the actual reactants' formulas and items that identify a specific chemical change. If you are interested in how calculation in chemistry works, this is the quiz for you.

Questions and Answers

1.

The formula of Iron III hydroxide is:
- A.
  
  Fe(OH)3
- B.
  
  Fe(OH)2
- C.
  
  Fe(OH)4
- D.
  
  FeOH
2.

The relative formula mass of Calcium hydroxide Ca(OH)₂ is:
- A.
  
  74g
- B.
  
  57g
- C.
  
  74amu
- D.
  
  57amu
3.

The mass of 2 mol of carbon dioxide CO₂ is:
- A.
  
  88 amu
- B.
  
  44g
- C.
  
  88 g
- D.
  
  44 amu
4.

How many moles are there in 9.8g of sulphuric acid H₂SO_4?
- A.
  
  1 mol
- B.
  
  2 mol
- C.
  
  0.1 mol
- D.
  
  0.2 mol
5.

The number of atoms found in one mole of silver atoms is called?
- A.
  
  Wissam's number
- B.
  
  Avogadro's number
- C.
  
  Newton's number
- D.
  
  Pascal's number
6.

When the following equation is balanced, the sum of all coefficients will be H₂ + O₂ ---> H₂O
- A.
  
  2
- B.
  
  3
- C.
  
  4
- D.
  
  5
7.

When the following chemical equation is balanced, the coefficients will be respectively N₂ + H₂ --> NH₃
- A.
  
  1 - 2 - 3
- B.
  
  3 - 2 - 1
- C.
  
  1 - 3 - 2
- D.
  
  0 - 3 - 2
8.

5 moles of C₆H₁₂O₆ has a mass:
- A.
  
  90
- B.
  
  900
- C.
  
  9
- D.
  
  0.9