Last updated on Oct 23, 2026

Equations (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes

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Equations

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10 questions from this quiz

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What does a chemical formula represent?

Symbols of elements in a compound

How many elements are in sodium chloride ( $NaCl$ )?

2

What is the total number of atoms in $NaCl$ ?

2

How many elements are in sodium sulfate ( $Na_2SO_4$ )?

3

What is the total number of atoms in $Na_2SO_4$ ?

7

How many atoms are in calcium carbonate ( $CaCO_3$ )?

5

In $Na_2O$ , how many sodium atoms are present?

2

What is the total number of atoms in $(NH_4)_2SO_4$ ?

15

In $(NH_4)_2$ , how many hydrogen atoms are there?

8

How many oxygen atoms are in $NaOH$ ?

1

Explore OCR GCSE Chemistry A (Gateway Science Suite) Revision Notes by Topics

Simple Model of the Atom

The Periodic Table

Properties of Transition Metals

Explore OCR GCSE Chemistry A (Gateway Science Suite) Model Answers by Topics

Simple Model of the Atom

The Periodic Table

Properties of Transition Metals

Explore OCR GCSE Chemistry A (Gateway Science Suite) Flashcards by Topics

Simple Model of the Atom

The Periodic Table

Properties of Transition Metals

Explore OCR GCSE Chemistry A (Gateway Science Suite) Exam Questions by Topics

Simple Model of the Atom

The Periodic Table

Properties of Transition Metals

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