Chem B2 study

Question 1

Ionic compounds

Answer 1

-consist of a metal and nonmetal
-solid at room tempertature
-conductive

Question 2

Molecular compound

Answer 2

-consist of two nonmetals
-Solids liquids or gases
-low conductivity

Question 3

ionic bonding

Answer 3

the complete transfer of valence electrons between atoms

Question 4

How are ionic bonds formed?

Answer 4

formed by atoms stealing electrons to obtain a full valence orbital

Question 5

polyatomic ions

Answer 5

ions that are made up of several nonmetalic atoms

Question 6

Convalent bond

Answer 6

bond formed when non-metalic atoms share electrons; atoms in a molecule are bound together by convalent bonds

Question 7

Molecular element

Answer 7

Element that forms molecules made up of its own atoms.

Question 8

Diatomic

Answer 8

consisting of two atoms

Question 9

C12H22O11

Answer 9

Sugar/sucrose

Question 10

H2O

Answer 10

water

Question 11

H2O2

Answer 11

hydrogen peroxide

Question 12

NH3

Answer 12

ammonia

Question 13

CH4

Answer 13

methane

Question 14

C3H8

Answer 14

propane

Question 15

CH3OH

Answer 15

methanol

Question 16

C2H5OH

Answer 16

ethanol

Question 17

H2S

Answer 17

hydrogen sulfide

Question 18

Sugar/sucrose chemical formula

Answer 18

C12H22O11

Question 19

hydrogen peroxide chemical formula

Answer 19

H2O2

Question 20

ammonia chemical formula

Answer 20

NH3

Question 21

methane chemical formula

Answer 21

CH4

Question 22

propane chemical formula

Answer 22

C3H8

Question 23

methanol chemical formula

Answer 23

CH3OH

Question 24

ethanol chemical formula

Answer 24

C2H5OH

Question 25

how are molecules formed?

Answer 25

When atoms combine by forming convalent bond the resulting collection of atoms is called a molecule

Question 26

what happens when an acid and a base react and what is the resulting pH

Answer 26

When an acid and base react togehter, the acidic and basic properties disapear. the reation created water and a neutal salt. The resulting pH is 7.

Question 27

what are CFCs and how do they affect the ozone layer?

Answer 27

chlorofluorocarbons are non tocic, non flammable chemicals used mainly in cooling systems. They contain chlorine which acts as a catalyst in the upper atmosphere and causes the destruction of the earths ozone layer.