Name ______________________ What’s Cookin

Bonus #2 10/03/05 Due 10/10/05 at start of class

1. Sketch the neutral ¹H + ²H + ³H clearly showing the correct number of subatomic particles (electrons, protons and neutrons). Note which is tritium and what is deuterium.

2. State the type and number of atoms in each of the following.

a. H₂O b. NaCl c. [Ca(H₂O)₆] 2 NO₃

3. Complete the following Table involving atoms, isotopes and ions.

Symbol	^14C	^12C	Ca^2+
# of protons				17
# of neutrons			20	20
# of electrons
atomic number
mass number
Net Charge				-1

4. Write the common ions formed by the following elements and then write their name. Hint: These will form cations.

a. Li e. Mg

b. Na f. Ca

c. K g. Al

d. Rb h. H

5. Write the common ions formed by the following elements and then write their name. Hint: These will form anions.

a. F e. O

b. Cl f. S

c. Br g. Se

d. I h. Ep

6. What is your favorite element and why?

7. Write formulas for the following compounds showing proper stoicheometry. All compounds are ionic.

example; calcium chloride = CaCl₂

a) sodium carbonate b) sodium bicarbonate

c) lye d) ammonium hydroxide

e) calcium hydroxide f) (alum) potassium aluminum sulfate

8. Consider the polyatomic anion, phosphate (PO₄^3-). Write out the ionic formulas and name each of the ions/molecules described below.

a) Combine phosphate with three hydrogen ions (H⁺), which are also called protons.

b) Combine phosphate with two hydrogen ions (H⁺), which are also called protons.

c) Combine phosphate with one hydrogen ion (H⁺), which is called a protons.

d) Combine phosphate with two hydrogen ions (H⁺) and a potassium ion.

e) Combine phosphate with one hydrogen ion (H⁺) and two potassium ions.

f) Combine phosphate with three potassium ions.

9. Write formulas for the following inorganic compounds.

a) aluminum bromide b) aluminum carbonate c) aluminum phosphate

d) ammonium bromide e) ammonium carbonate f) ammonium phosphate