Product Examples in Chemistry

Start with the recap, study the fully worked examples, then use the practice problems to check your understanding of Product.

This page combines explanation, solved examples, and follow-up practice so you can move from recognition to confident problem-solving in Chemistry.

Concept Recap

A new substance formed as a result of a chemical reaction, appearing on the right side of a chemical equation, with different chemical properties from the original reactants.

What you end up with after the reaction — the new stuff that gets made from the ingredients.

Read the full concept explanation →

How to Use These Examples

  • Read the first worked example with the solution open so the structure is clear.
  • Try the practice problems before revealing each solution.
  • Use the related concepts and background knowledge badges if you feel stuck.

What to Focus On

Core idea: Products appear on the right side of a chemical equation and have different properties from reactants.

Common stuck point: Products can themselves become reactants in subsequent reactions.

Sense of Study hint: When identifying products in a reaction, look at the right side of the arrow. First write out the balanced equation. Then identify every substance after the arrow — those are your products. Finally, verify that the products have different properties from the reactants.

Worked Examples

Example 1

easy
Define the term 'product' in a chemical reaction. In the reaction \text{Mg} + 2\text{HCl} \rightarrow \text{MgCl}_2 + \text{H}_2, identify all products.

Solution

  1. 1
    A product is a substance that is formed (produced) during a chemical reaction. Products appear on the right side of the chemical equation.
  2. 2
    In this reaction, the products are \text{MgCl}_2 (magnesium chloride) and \text{H}_2 (hydrogen gas).
  3. 3
    Products have different properties from the reactants — \text{MgCl}_2 is a salt dissolved in solution, and \text{H}_2 is a flammable gas.

Answer

\text{Products: MgCl}_2\text{ and H}_2\text{ (right side of the arrow)}
Products are the new substances created by the rearrangement of atoms during a chemical reaction. The law of conservation of mass ensures that the total mass of products equals the total mass of reactants.

Example 2

medium
In the reaction \text{Fe}_2\text{O}_3 + 3\text{CO} \rightarrow 2\text{Fe} + 3\text{CO}_2, identify the products and calculate how many moles of each product are formed from 1.5 mol of \text{Fe}_2\text{O}_3.

Example 3

medium
In the reaction 2\text{H}_2 + \text{O}_2 \to 2\text{H}_2\text{O}, identify the reactants and products.

Practice Problems

Try these problems on your own first, then open the solution to compare your method.

Example 1

medium
When baking soda (\text{NaHCO}_3) reacts with vinegar (acetic acid, \text{CH}_3\text{COOH}), bubbles form. Identify the gas product and explain what evidence indicates a new product has formed.

Example 2

hard
In the Haber process, \text{N}_2 + 3\text{H}_2 \rightleftharpoons 2\text{NH}_3, calculate the mass of ammonia (\text{NH}_3) produced from 56.0 g of nitrogen gas reacting with excess hydrogen. (N = 14.01, H = 1.008\,\text{g/mol})
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Background Knowledge

These ideas may be useful before you work through the harder examples.

chemical reaction