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3.3 Types of chemical reactions

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Question 27
H

The diagrams show the particles in four acid solutions, P, Q, R and S. Each diagram shows the same volume of solution. Water molecules are not shown.

image

Which two diagrams represent acid solutions with the same concentration of acid?

[1]
A

P and Q

B

P and R

C

Q and R

D

R and S

Markscheme

3.3 Types of chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /3.3 Types of chemical reactions

112 exam-style questions on OCR GCSE Chemistry 3.3 Types of chemical reactions, covering 3.3.1 Oxidation and reduction in terms of oxygen, 3.3.2 Acids, alkalis and neutralisation, 3.3.3 The pH scale and measuring pH, 3.3.4 Oxidation and reduction in terms of electrons, 3.3.5 Dilute and concentrated, weak and strong acids, and 3.3.6 Hydrogen ion concentration and pH. Each one has a worked solution and a mark scheme showing where the marks go.

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