Second Semester Final Review

Chemical Reactions

100

the chemical formula to the right of the arrow 

products 

200

a reaction when two simple substance combine into a single compound 

synthesis reaction 

300

a reaction when a compound breaks into similar compounds 

decomposition reaction 

400

what is the balanced form of  SeCl6 + O2 ----> SeO2 + Cl2

SeCl6 + O2 ---> SeO2 + 3 Cl2

500

balance Na3PO4 + HCl ----> NaCl + H3PO4 

Na3PO4 + HCl ----> NaCl + H3PO4

Molar-Mass Conversion

100

how many atoms are in H₂O

18 

200

how many atoms are in CO₂

44

300

how many atoms are in Mg(OH)₂

58

400

what is the molar mass of H₂O 

18

500

what is the molar mass of HCl

36.45

Concentration Review

100

what is solvent 

the liquid of the solution 

200

what is solute

whatever that dissolves in the solution 

300

if something has more solvent than solute what is it

diluted 

400

there is 1.0 L of water and 8 scoops of lemonade powder what is it ?(3 to 1 ratio)

concentrated 

500

what is the percent of 2 x 3/ 100

6%

Acid-Base Review

100

if the the pH level is high what is it

basic

200

if the pH level is 1 what is it

acidic 

300

pH over 7

basic

400

pH under 7 

acidic 

500

what is water acidic or basic

basic 

Mixed

100

why are there algae blooms

ocean waters are to warm

200

why are coral dying

rising temperature of the oceans

300

what is acid rain

rain that carries toxic chemicals 

400

why do we have global warming

our carbon emissions 

500

what is happening to our oceans 

its becoming more acidic