Ionic

1
Ionic Covalent Compound Formulas
2
You must use the criss-cross method to balance
ionic AND covalent compound formulas.

1. Yes
2. No

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3
You only need to write a Roman Numeral with
transition metals, Sn and Pb.

1. Yes
2. No

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4
Prefixes are used with

1. Ionic compounds
2. Covalent compounds
3. Both

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5
1) What is the correct formula when Na combines
with S2-?

1. NaS2
2. S2Na
3. SNa2
4. Na2S
5. Na2S2

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6
2) What is the correct formula when Ca2 and N3-
combine?

1. Ca2N3
2. Ca3N2
3. Ca2NO3
4. CaN

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7
3) What is the correct formula when Mg2 and O2-
combine?

1. Mg2O2
2. O2Mg2
3. MgO
4. OMg !!
5. Mg2O
6. MgO2

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8
4) What is the correct formula when Pb4 and O2-
combine?

1. Pb4O2
2. Pb2O
3. Pb2O4
4. PbO2
5. PbO

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9
5) What is the correct formula when Mg2 and
PO43- combine?

1. Mg3PO2
2. Mg3(PO4)2
3. Mg2PO3
4. Mg2(PO4)3
5. MgPO4

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10
6) What is the correct formula when Ca2 and OH-
combine?

1. CaOH2
2. CaO2H2
3. Ca2OH
4. Ca(OH)2
5. CaOH

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11
7) What is the correct formula for Silicon
Tetrabromide?

1. Si4Br
2. SiBr
3. SiBr5
4. SiBr7
5. SiBr4
6. SiBr6

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12
8) What is the correct formula for Dinitrogen
Trisulfide?

1. NS
2. N3S2
3. NS3
4. N2S3
5. DnTs

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13
9) What is the correct formula for Phosphorus
Pentachloride?

1. PCl5
2. P5Cl
3. P5Cl3
4. PhCl5
5. PhCl6
6. P3Cl

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14
10) The formula CCl7 would have what name?

1. Monocarbon Heptachloride
2. Carbon Chloride Seven
3. Carbon Heptachloride
4. Carbon Chloride

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15
11) The formula SPO4 would have what name?

1. Sulfur Phosphate
2. Monosulfur Monophosphate
3. Sulfur Monophosphide
4. Sulfur Monophosphate

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