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

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)