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Flashcards in Chemical Reactions Deck (20):
1

Chemical properties

Properties that describe how a substance combines with other substances to form new chemicals or how substances breaks up into More substances

2

Flammability

An indicator of how easily a substance burns

3

Reactivity

A measure of how likely a particular metal is to take part in a displacement reaction

4

Toxicity

The danger to health caused when poisonous substances combine with chemicals in your body to produce substances and damaging effects.

5

Chemical change

Change that results in new substances being formed. During a chemical some chemical bonds break and some form

6

Evaporates

Change state from liquid to gas

7

Physical change

Change in which no new chemical is formed. A physical change may be a change in size shape or state.

8

Reactant

Chemical substance used up in a chemical reaction

9

Products

New chemical substance that results from a chemical reaction

10

Precipitation

Falling water in solid or liquid

11

Chemical reaction

A chemical change in which one or more chemical substances are produced

12

Reaction rate

Speed at which a reaction takes place

13

Catalyst

Chemical that helps start or speed up a reaction

14

Enzymes

Special chemicals that speed up reactions but are themselves not used in a reaction

15

Rusting

The corrosion of iron

16

Corrosion

A chemical reaction that wears away a metal

17

Surface protection

Coating over a metal surface to prevent corrosion

18

Galvanising

Protecting a metal by covering it with a more reactive metal that will corrode first

19

Rust

A brown substance formed when iron reacts with water and oxygen

20

Physical properties

Properties that you can either observe using your 5 senses or by measuring directly.