Practice question · True or false
In a balanced chemical equation, the number of atoms of each element is the same on both sides.
Hints
- Think about what conservation of mass demands.
- Atoms are rearranged in a reaction, never created or destroyed.
Show the answer
True
Why
Conservation of mass requires atom counts to be equal on reactant and product sides. Coefficients are chosen to ensure this.
Practise Stoichiometric relationships
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More questions on Stoichiometric relationships
- Order the steps to balance a chemical equation by inspection.
- For the reaction 2H2 + O2 → 2H2O, you mix 4 mol of H2 with 1 mol of O2. What limits the water you can make?
- Propane burns: C3H8 + 5O2 → 3CO2 + 4H2O. How many moles of O2 are needed to burn 2 mol of propane completely?
- A reaction runs out of one reactant while another remains. Why does the limiting reagent determine the yield…