QUESTION 6

Which of the following is a Binary ionic compound?

	A.	KOH
	B.	CO2
	C.	SiF4
	D.	NaCN
	E.	FeCl3

QUESTION 7

How many electrons will nitrogen gain or lose when it forms a nitride ion?

A. gain 3

B. lose 3

C. gain 2

D. lose 2

QUESTION 8

The charges on the positive ion and the negative ion in Cu(OH)₂ , respectively are:

	A.	+1 & -1
	B.	+2 & -1
	C.	+2 & -2
	D.	-2 & +1
	E.	+2 & -3

QUESTION 9

Write the formula for barium nitrite.

A) Ba₃N₂

B) BaNO₃

C) BN

D) Ba(NO₂)₂

QUESTION 10

How many grams of Magnesium (Mg) are in pure compound of Magnesium Chloride , that contains 27.0 grams of

Chlorine?

Hint : you must write the correct chemical formula for Magnesium chloride to solve the quection.

Atomic mass of Mg = 24.3 g/mol and Cl = 35.5 g/mol

A. 48.6 g Mg

B. 71.0 g Mg

C. 9.24 g Mg

D. 78.9 g Mg

E. 12.2 g Mg