Please answer the following questions. thank you.

1) When zinc combines with non-metals, it always has an oxidation number of +2. The electronic configuration of zinc is [Ar] 3d¹⁰ 4s², which is also written [Ar] 4s² 3d¹⁰. From which orbital does zinc lose electrons when it forms an ionic bond?

a. 4s²

b. 3s²

c. 3d¹⁰

d. 2d¹⁰

e. 3p⁶

2) A substance needs more energy to undergo an increase of 5^oC, this substance has specific heat.

a. High

b. Low

c. Moderate

d. None of the above

e. All of the above

3) The addition of 250.0 J to 30.0 g of copper, initially at 22^o C, will change its temperature to what final value? (C_Cu = 0.387 J g^{-1 o}C ^-1)

a. 30 ^oC

b. 41 ^oC

c. 52 ^oC

d. 43.5^oC

e. None of the above

4) The electron configuration of indium is [Kr] 4d¹⁰ 5s² 5p¹. Indium forms compounds with chlorine. One is indium (I) chloride, formula InCl. What electron do you think indium gave up?

a. 4d¹⁰

b. 5s²

c. 5p¹

d. 4s²

4p¹