I have 2019 papers ,dm on install you need the paper and answers? also if you have 2020 paper or if you have done 2020 paper 1 chemistry please help me out here. many thanks

Identify one disadvantage to each of the following models of electron configuration: dot structures arrow and line diagrams written electron configurations type in your answer below.

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

Geothermal energy for industrial use is available almost anywhere. a.true b.false