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WorksheetsScience homework - W2
Total questions: 8
Worksheet time: 4mins
what does Observation mean
Scientists use observation to collect and record data. Scientists observe in many ways – with their own senses or with tools that extend their vision or hearing
A starting substance in a reaction (on the left of a chemical equation)
What does Reactant mean
A starting substance in a reaction (on the left of a chemical equation)
Scientists use observation to collect and record data. Scientists observe in many ways – with their own senses or with tools that extend their vision or hearing
What does products mean
Where a more reactive metal replaces a less reactive metal in a compound:
Magnesium + iron chloride -> magnesium chloride + iron
A substance that is made in a chemical reaction (on the right of a chemical equation)
What is Displacement reaction
Where a more reactive metal replaces a less reactive metal in a compound:
Magnesium + iron chloride -> magnesium chloride + iron
A form of writing a chemical reaction that shows the reactants turning into products, using chemical formulae and a ->
Word equation Means
A form of writing a chemical reaction that shows the reactants turning into products, using words
A form of writing a chemical reaction that shows the reactants turning into products, using chemical formulae
A formula that shows the number of atoms of each element in a compound
Symbol equation means
A form of writing a chemical reaction that shows the reactants turning into products, using chemical formulae
A formula that shows the number of atoms of each element in a compound
Chemical formula means
Where the number of atoms for each element in the reaction is the same for the reactants and the products. It is done by putting big numbers before a chemical formula. Eg. 2H2 + O2 -> 2H2O
A formula that shows the number of atoms of each element in a compound
Balancing equations Is
Where the number of atoms for each element in the reaction is the same for the reactants and the products. It is done by putting big numbers before a chemical formula. Eg. 2H2 + O2 -> 2H2O
A form of writing a chemical reaction that shows the reactants turning into products, using chemical formulae
