I am doing my section one test tomorrow, and the only question I do not understand is the preliminary one. Our teacher refuses to help us on this, and I really do not understand.
My hypothesis is:
The amount of carbonate in an ore sample can be measure by adding hydrochloric acid to the sample until it stops fizzing.
My variables are
Dependent - Measurement (time)
Independent - Calcium Carbonate (Amount)
Control - Keep the method the same and HCL
Please help with structure! I am clueless, and Chemistry is my worst subject! Ahhhhhh!
Thanks for posting! You just need to create an account in order to submit the post
Already a member?
Oops, something wasn't right
please check the following:
Not got an account?
Sign up now
© Copyright The Student Room 2016 all rights reserved
The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.
Register Number: 04666380 (England and Wales), VAT No. 806 8067 22
Registered Office: International House, Queens Road, Brighton, BN1 3XE