1. (8.5d) A compound has a formula Mg:(PO.). Which best describes the atoms that make up this compound? A.

B.

Atom

Magnesium (Mg)

phosphorus (0)

Oxygen (0)

Number

2

1

4

Atom

Magnesium (Mg)

Phosphorus (P)

Oxygen (0)

Number

6

2

8

C.

Atom

Magnesium (M)

Phosphorus (2)

Oxygen (0)

Number

3

4

2

D.

Atom

Magnesium (Mg)

Phosphorus (P)

Oxygen (0)

Number

3

2

8

To apply in a gold the individual gold atoms are united to each other by means of a metallic bond. how would you use the gold block to determine the atomic radius of a gold atom?

Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that

Answer the questions about this reaction: nai(aq) + cl2(g) → nacl(aq) + i2(g) write the oxidation and reduction half-reactions: oxidation half-reaction: reduction half-reaction: based on the table of relative strengths of oxidizing and reducing agents (b-18), would these reactants form these products? write the balanced equation: answer options: a. 0/na -> +1/na+1e- b. nai(aq) + cl2(g) → nacl(aq) + i2(g) c. +1/na+1e- -> 0 /na d. -1/2i -> 0/i2+2e- e. no f. 4nai(aq) + cl2(g) → 4nacl(aq) + i2(g) g. 2nai(aq) + cl2(g) → 2nacl(aq) + i2(g) h. 4nai(aq) + 2cl2(g) → 4nacl(aq) + 2i2(g) i. nai(aq) + cl2(g) → nacl(aq) + i2(g) j. 0/cl2+2e -> -1/2cl- k. yes