Monitoring Reaction Rate Techniques

00:00 1 marks

Which technique could be used to monitor the rate of reaction between CaCO₃(s) and HCl(aq)?
CaCO₃(s) + 2HCl(aq) → CaCl₂(aq) + H₂O(l) + CO₂(g)
I. Measuring the change in mass over time
II. Measuring the volume of gas produced over time
III. Measuring the change in pH over time

A

I and II only
B

I and III only
C

II and III only
D

I, II and III

Hint Hint

Hint

Consider the states of reactants and products and how their quantities change over time. Think about measurable properties related to these changes.

Answer Answer
Mark Scheme Mark Scheme
Explanation Explanation
Examiner Tips Examiner Tips
Common Errors Common Errors
Real World Context Real World Context

Answer Answer

Complete Answer

I, II and III

Mark Scheme Mark Scheme

Answer Explanation Answer Explanation

Examiner Tips Examiner Tips

Common Errors Common Errors

Math Editor

Welcome Back!

Create your account

Build skills for today, tomorrow, and beyond. Education to future-proof your career.

By clicking "Sign in," you agree to our Terms of Use and our Privacy Policy

Hint: The password should be at least eight characters long. To make it stronger, use upper and lower case letters, numbers, and symbols like ! " ? $ % ^ & ).