1.) Use the changes in oxidation number to identify which atoms are oxidized and which are reduced in each reaction. a.) 2Na(s) + Cl2(g) --> 2NaCl(s)

Na --> Na+1 is oxidized Cl2 --> Cl- is reduced

b.) 2HNO3(aq) + 6HI(aq) --> 2NO(g) + 3I2(s) + 4H2O(l)

N+5 --> N+2 is reduced I-1 --> I2 is oxidized

c.) 3H2S(g) + 2HNO3(aq) --> 3S(s) + 2NO(g) + 4H2O(l)

d.) 2PbSO4(s) + 2H2O(l) --> Pb(s) + PbO2(s) + H2SO4(aq)

City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8â° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was â’3â° c. what was the temperature of city a and city b on that day? city a was 5â° c, and city b was 4â° c. city a was 3â° c, and city b was â’1â° c. city a was 8â° c, and city b was â’3â° c. city a was 5â° c, and city b was â’5â° c.

Asolution of sodium hydroxide was titrated against a solution of sulfuric acid. how many moles of sodium hydroxide would react with 1 mole of sulfuric acid?

What diagram shows the ionic compound of magnesium oxide