CourseCourseConceptConceptDocsDocuments

Edexcel IGCSE Chemistry 2.37 Acid Reactions Questions

Practise predicting observations and word equations when acids react with metals, bases or carbonates to form salts and gases.

Syllabus
First assessment 2019
Course
Chemistry 4CH1

Exam points

  • write word equations for acids reacting with metals, including salt and hydrogen products
  • state observations

Edexcel IGCSE Chemistry 2.37 Acid Reactions Questions question 1

[Maximum number: 1]

A student uses this apparatus to investigate the rate of reaction between marble chips and dilute hydrochloric acid.

Figure for Question Edexcel IGCSE Chemistry 2.37 Acid Reactions Questions question 1 — Edexcel IGCSE Chemistry

The equation for the reaction is

CaCO3+2HCl→CaCl2+H2O+CO2\mathrm{CaCO}_{3}+2 \mathrm{HCl} \rightarrow \mathrm{CaCl}_{2}+\mathrm{H}_{2} \mathrm{O}+\mathrm{CO}_{2}

During the reaction the mass of the contents of the flask decreases.

State why the mass of the contents of the flask decreases.

All question bank results loaded