Chemistry Calculator
Chemistry Problems
Mole Calculator
Stoichiometry Calculator
Balancing Equations Calculator
Chemistry Answers
A student wishes to investigate the effect of surface area on the rate of reaction between marble chips and hydrochloric acid. Which variables should he control?
GCSE
Related GCSE Questions
A chemist needs to neutralise aqueous hydrochloric acid solution (currently pH 1) to pH 7 or higher, so it can be safely disposed of. They have access to solid NaCl, NaBr and Na2CO3.
What is fractional distillation and how is crude oil separated into its fractions?
What is electronegativity?
Describe why diamond is hard and graphite is soft?
Describe what happens when 2 atoms of potassium react with 1 atom of sulphur? Give the answer in terms of electron transfer.
Levels
All Levels
11 plus
13 Plus
A Level
GCSE
IB
KS3
Mentoring
Scottish Highers
University