science

HideShow resource information
what is a chemical reaction? give examples
a change in which atoms are rearranged to go create new substances eg combustion
1 of 10
2 differences between chemical reactions and physical changes
chemical reactions are not reversible. physical changes are. chemical reactions transfer energy physical changes don't
2 of 10
what is meant by endothermic reaction
a chemical reaction that transfers energy from the surrounding
3 of 10
what is an exothermic reaction
a chemical reaction which transfers energy to surroundings
4 of 10
what happens to particles in a chemical reaction
they get rearranged in a different way
5 of 10
explain the law of conservation of mass
In any chemical reaction the total mass of reactants the total mass of reactants = the total mass of the products
6 of 10
what is meant by thermal decomposition
when a substance breaks down on heating
7 of 10
what is a decomposition reaction
a chemical reaction in which a compound breaks to form simpler compounds and for elements
8 of 10
4 signs of chemical reaction
flames or sparks, new smell, temperature changes, fizzing or popping
9 of 10
what is meant by physical changes
a reversible change in which no new substances are made eg. changes of state/ dissolving
10 of 10

Other cards in this set

Card 2

Front

2 differences between chemical reactions and physical changes

Back

chemical reactions are not reversible. physical changes are. chemical reactions transfer energy physical changes don't

Card 3

Front

what is meant by endothermic reaction

Back

Preview of the front of card 3

Card 4

Front

what is an exothermic reaction

Back

Preview of the front of card 4

Card 5

Front

what happens to particles in a chemical reaction

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Other resources:

See all Other resources »See all chemical reactions resources »