Chemicak Equationa Flashcards
What is a chemical equation?
A representation of a chemical reaction using symbols or formulas.
What are reactants in a chemical equation?
The substances that react with each other, located on the left-hand side of the equation.
What are products in a chemical equation?
The substances produced from the reactants, located on the right-hand side of the equation.
What is a word equation?
A way to show a chemical reaction using words instead of symbols.
Provide an example of a word equation.
Methane + Oxygen > Carbon Dioxide + Water
What is a symbol equation?
A shorthand representation of a chemical reaction using symbols or formulas.
What must be true about the number of atoms in a balanced chemical equation?
The same number of atoms of each element must be present on both sides of the equation.
What is the process of balancing a chemical equation?
Adding numbers in front of the formulas to ensure the number of atoms is equal on both sides.
Can you change the chemical formulas when balancing an equation?
No, you can only add numbers in front of the formulas.
What is the first step in balancing an equation?
Find an element that doesn’t balance and pencil in a number to try and sort it out.
Fill in the blank: A balanced equation for reacting sulfuric acid with sodium hydroxide is _______.
H₂SO₄ + 2NaOH -> Na₂SO₄ + 2H₂O
What happens if you add a number in front of one reactant when balancing?
It may create another imbalance that needs to be corrected.
Provide a balanced symbol equation for the splitting of water.
2H₂O -> 2H₂ + O₂
