unit 10 quiz

Question 1

whats a combination reaction

Answer 1

when two or more substances combine to form one new substance

Question 2

what is a decomposition reaction

Answer 2

a single compound breaks down into two or more simpler products

Question 3

whats a single replacement reaction

Answer 3

one element replaces a second element in a compound

Question 4

when do single replacements occur (only when…)

Answer 4

occur only if the outside element is more reactive than the element in the compound

Question 5

what exchange to we have to worry about in single replacement reactions

Answer 5

between two metals or two halogens

Question 6

what is the activity series and what is its use

Answer 6

it lists metals in order of decreasing activity. its used to predict if a single replacement reaction will occur

Question 7

what is a double replacement reaction

Answer 7

when positive ions are exchanged between two compounds

Question 8

in a double replacement reaction, if one thing is a solid, the other one is ___

Answer 8

aqueous

Question 9

whats a combustion reaction

Answer 9

when an element or a compound reacts with oxygen, producing carbon dioxide and oxygen.

Question 10

what are the diatomics

Answer 10

Hydrogen, chlorine, flourine, oxygen, nitrogen, bromine, mercury (have no fear of ice cold beer)

Question 11

which of the diatomics are liquid

Answer 11

mercury and bromine

Question 12

are ionic compounds aqueous, gas, solid, or liquid

Answer 12

solid, unless dissolved in water, making them aqueous

Question 13

is NH3 aqueous, gas, solid, or liquid

Answer 13

gas