Chemistry #2

Question 1

Define Lustre

Answer 1

If something is shiny

Question 2

Define Malleability

Answer 2

How flexible something is

Question 3

Define Ductility

Answer 3

If something can be coiled into a wire

Question 4

Chemical Change

Answer 4

A chemical change is when the substance/s change into an entirely different substance.

Question 5

Physical Change

Answer 5

A Physical change is when the appearance of a substance can change but the chemical configuration

Question 6

Reactivity

Answer 6

Whether a substance will react or not

Question 7

corrodibility

Answer 7

Whether a substance will decay under oxygen

Question 8

Flammability

Answer 8

Whether a substance is flammable

Question 9

Toxicity

Answer 9

Whether a substance is toxic

Question 10

Light Sensitivity

Answer 10

Whether a substance reacts to light or not

Question 11

Nuclei Decay

Answer 11

When a Radioactive substance attempts to become stable by emitting Alpha/Beeta/Gamma rays.

Question 12

Product

Answer 12

Chemical substances which result from a chemical reaction

Question 13

Reactant

Answer 13

The original substances present in a Chemical Reaction

Question 14

Reagent

Answer 14

A type of reactant

Question 15

Aqueous

Answer 15

Water related

Question 16

Precipitate

Answer 16

Solid formed when two liquids are mixed together

Question 17

Exothermic

Answer 17

Something that gives off heat and gets hot

Question 18

Endothermic

Answer 18

Something that absorbs heat and gets cold

Question 19

Nuclear Fission

Answer 19

A radioactive decay process in which the atom splits into two Nuclei causing immense bursts of Energy

Question 20

Nuclear Fusion

Answer 20

A nuclear reaction from low atomic number elements in which they form to create heavier nucleus that produces energy

Question 21

Law of Conservation of Mass

Answer 21

law that states that, in a chemical reaction, the total mass of the reactants is the same as the total mass of the products - matter can’t be created nor destroyed only transformed.

Question 22

Law of Constant Proportions

Answer 22

law that states that, in chemical compounds, the ratio of the elements is always the same

Question 23

Chemical Energy

Answer 23

Energy stored in chemical bonds that is released during chemical reactions

Question 24

Chemical Process

Answer 24

A reaction that changes the arrangement of the atoms or molecules of the substances involved

Question 25

Nitroglycerin:

Answer 25

A highly explosive liquid

Question 26

Synthesis Reactions

Answer 26

A Synthesis reaction occurs when two reactants form a larger product. It is the opposite of a Decomposition Reaction.

Question 27

Decomposition Reaction

Answer 27

A Decomposition reaction occurs when a large reactant turns into two or more smaller products.

Question 28

Combustion Reaction

Answer 28

A Combustion Reaction is a reaction which consists of organic substances. The product includes heat and Oxygen.

Question 29

Organic Substance

Answer 29

Organic substances must have Hydrogen and Carbon

Question 30

Single Displacement Reaction

Answer 30

This reaction is when one reactant in a compound is replaced by another. The displaced reactant is alone.

Question 31

Double Displacement Reaction

Answer 31

Also known as Precipitate reactions, the two reactants (liquids) turn into a solid.

Question 32

Acid-Base Reaction

Answer 32

A Acid-Base reaction must have a product of salt and water.