Chemical Equations
Chemistry ⇒ Chemical Reactions and Equations
Chemical Equations starts at 7 and continues till grade 12.
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Balance the following equation: ___Al + ___O2 → ___Al2O3
Balance the following equation: ___C2H6 + ___O2 → ___CO2 + ___H2O
Balance the following equation: ___Fe + ___O2 → ___Fe2O3
Balance the following equation: ___H2 + ___N2 → ___NH3
Balance the following equation: ___Na + Cl2 → ___NaCl
Explain the difference between a word equation and a chemical equation.
Explain why chemical equations need to be balanced.
In a chemical equation, what does a coefficient in front of a formula indicate?
In the context of chemical equations, what does the term 'subscript' refer to?
In the equation: 2KClO3 → 2KCl + 3O2, how many oxygen molecules are produced?
In the equation: CaCO3 → CaO + CO2, what type of reaction is this?
In the reaction: C + O2 → CO2, what is the reactant?
State the law of conservation of mass.
What does the arrow (→) in a chemical equation mean?
What does the symbol (aq) mean in a chemical equation?
What information does a chemical equation provide about a reaction?
What is a chemical equation?
What is meant by a 'reactant' in a chemical equation?
What is the product when magnesium reacts with oxygen?
Write the word equation for the reaction: 2Na + Cl2 → 2NaCl
