Chemical Reactions

HideShow resource information
  • Created by: izzy.t
  • Created on: 03-05-16 02:19
What is a chemical reaction?
A chemical change in which one or more new chemical substances are produced. (rearrangement of atoms)
1 of 22
What's an exothermic reaction?
A reaction that gives out energy to its surrounding eg. combustion
2 of 22
What's an endothermic reaction?
Reactions that absorb heat energy from its surroundings
3 of 22
Acids and Bases -H+?
Acids are proton (H+) donors and bases accept protons
4 of 22
What is the Law of Conservation of Mass?
Mass is never created or destroyed in a chemical reaction
5 of 22
Properties of Acids?
Taste sour, react with metal, turn blue litmus paper red, corrosive, conduct electricity
6 of 22
Properties of Bases?
Taste bitter, conduct electricity, pH greater than 7, caustic
7 of 22
Examples of acids and bases?
Acids: hydrochloric acid, lactic acid, citric acid. Bases: cleaning products, shampoo, cement
8 of 22
What is combustion?
A exothermic reaction when something reacts with oxygen
9 of 22
Complete and incomplete combustion?
Complete combustion always creates carbon dioxide and water. Incomplete combustion (lack of oxygen) produces carbon monoxide and water vapor
10 of 22
What is corrosion?
A chemical reaction that wears away the surface of a substance (usually metal) when exposed to water air and other chemicals
11 of 22
Types of corrosion?
Tarnish, verdigris and rusting
12 of 22
Methods to measure the pH level of substances?
Universal indicator, cabbage water, litmus paper
13 of 22
What is a pH level?
The "power of hydrogen (H+)".. concentration of H+
14 of 22
What is photosynthesis?
An endothermic reaction where plants use sunlight and chlorophyll to create glucose
15 of 22
What is aerobic respiration?
Chemical reaction that breaks down glucose, in the presence of oxygen, to form carbon dioxide and water, and energy
16 of 22
Main steps in the carbon cycle?
Plants take up CO2 from the atmosphere for photosynthesis Animals eat plants Living plants and animals release CO2 back into the atmosphere through respiration Plants and animals release carbon back into the soil through wastes such faeces, urine and
17 of 22
Acid and Metal Reactions?
Metal + Acid -> a salt + hydrogen
18 of 22
Neutralisation?
acid-base reaction. when H+ are transferred from an acid to a base. Acid + Base -> salt + water
19 of 22
Acid and Carbonates?
Carbonate + Acid -> salt + water + carbon dioxide
20 of 22
Combustion worded equation?
Complete - something + oxygen -> carbon dioxide + water. Incomplete - something + oxygen -> carbon monoxide + water
21 of 22
What is the equation for glucose?
C6 H12 O6
22 of 22

Other cards in this set

Card 2

Front

What's an exothermic reaction?

Back

A reaction that gives out energy to its surrounding eg. combustion

Card 3

Front

What's an endothermic reaction?

Back

Preview of the front of card 3

Card 4

Front

Acids and Bases -H+?

Back

Preview of the front of card 4

Card 5

Front

What is the Law of Conservation of Mass?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Science resources:

See all Science resources »See all Chemical reactions resources »