Chemical equations (AQA GCSE Chemistry): Flashcards
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14 cards from this deck
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Practise the cards
14 cards from this deck
What are reactants?
What are reactants?
Chemicals that react together at the start of a reaction
What are products?
What are products?
New chemicals made in the reaction
Two ways to write chemical equations
Two ways to write chemical equations
Word equations and chemical equations
What do word equations use?
What do word equations use?
Names of chemicals
What do symbol equations use?
What do symbol equations use?
Symbols and formulas
What does the arrow in a chemical equation show?
What does the arrow in a chemical equation show?
Direction of the reaction
Where are reactants positioned in an equation?
Where are reactants positioned in an equation?
Before the arrow
Where are products positioned in an equation?
Where are products positioned in an equation?
After the arrow
What happens to atoms in a chemical reaction?
What happens to atoms in a chemical reaction?
Conserved - cannot be created or destroyed
What do numbers in front of formulas show?
What do numbers in front of formulas show?
How many molecules
State symbol (s) means
State symbol (s) means
Solid
State symbol (l) means
State symbol (l) means
Liquid
State symbol (g) means
State symbol (g) means
Gas
State symbol (aq) means
State symbol (aq) means
Aqueous solution (dissolved in water)