Igcse Chemistry Questions And Answers Pdf Official

Acid + Metal $\rightarrow$ Salt + Hydrogen

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Draw a dot-and-cross diagram to represent a molecule of water ($H_2O$). Acid + Metal $\rightarrow$ Salt + Hydrogen |

How do you calculate the density of a substance? Answer: The density of a substance can be calculated using the formula: density = mass / volume. igcse chemistry questions and answers pdf