The student repeated the experiment with an unknown metal Q instead of magnesium.
All the other vanabies were kept the same.
The student recorded a smaller temperature change.
Suggest the identity of metal Q.
Give one reason for your answer.
[2 marks]
Metal Q
Reason

1. they vary with a higher number because boiling is way hotter than melting

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.