1. The compound 2NaCl consists of A.2 atoms of sodium element B. 1 atom of chlorine element C. 3 atoms of sodium element D. 1 atom of sodium element
2. The valency of iron in iron (III) sulphate is A.3 B.2
C.4
D.5
3.The systematic name of the compound Cuso, is A. Copper (I) sulphate B. Copper
(II) tetraoxosulphate C. Copper (II) tetraoxosulphate (IV) D. Copper (II)
tetraoxosulphate (VI)​

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.

When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?