Atoms And molecules Part 2

Question 1

Molecules

Answer 1

Adams may join with other atoms to form units that are called molecules

Question 2

Chemical change

Answer 2

Process of atoms joining other types of atoms

Question 3

Compound

Answer 3

Molecules produced by chemical reaction

Question 4

H20

Answer 4

Water
Formed by combining oxygen and hydrogen

Question 5

Chemical formula

Answer 5

One scientist want to show the elements that make up a compound

Question 6

C02

Answer 6

Carbon dioxide

Question 7

H2co3

Answer 7

Carbonic acid

Question 8

C12h22O11

Answer 8

Cane sugar

Question 9

NaHCO3

Answer 9

Baking soda

Question 10

C9H8O4

Answer 10

Aspirin

Question 11

Co2

Answer 11

Carbon dioxide

Question 12

Synthesis reaction

Answer 12

molecules combine to make new substances

Question 13

DeComposition react

Answer 13

One chemical reaction breakdown, a complex compound into simpler compounds

Question 14

Single replacement

Answer 14

One element replaces another

Question 15

Double replacement

Answer 15

Two elements switch places

Question 16

Stable

Answer 16

When the outermost shell of an atom is completely filled, it is considered stable

Question 17

Covalent bond

Answer 17

Some bonds occur when atoms share pairs of electrons

Question 18

Ion

Answer 18

An atom that has gained or lost electrons