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What does a subscript show in a chemical formula?
A
More than one complete hydroxide group is needed, so the subscript must multiply O and H together.
B
The number of atoms of the preceding element in one particle.
C
An ion formed by gaining electrons has a negative charge.
D
- Reactants are present at the start and go left of the arrow.
- Products are formed and go right of the arrow.
Card 1 of 20
1.1 Formulae, equations and hazards Flashcards
20 flashcards on Edexcel GCSE Chemistry 1.1 Formulae, equations and hazards: the key terms, definitions and equations you need to recall for Paper 1 and Paper 2.