Magnesium ribbon reacts with dilute hydrochloric acid: Mg + 2HCl → MgCl₂ + H₂.
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Magnesium ribbon reacts with dilute hydrochloric acid: . Magnesium is a solid, the acid and the magnesium chloride are dissolved in water, and hydrogen is a gas. Write the equation with state symbols.
Need a reminder? The key ideaShow
A chemical equation shows the reactants on the left and the products on the right. State symbols: solid, liquid, gas, dissolved in water. Gases such as oxygen, hydrogen and chlorine are written as , , . A number after a bracket multiplies everything inside it.
The worked solution
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Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, compare your working with the solution.
Step 1. Each substance. Mg is , HCl is , is , is .
Answer: .
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