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You can create printable tests and worksheets from these Grade 10 Molecules and Compounds questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

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What is the correct name for the compound $MgO$?
1. magnesium trioxide
2. dimagnesium trioxide
3. magnesium oxide
4. magnesium oxygen
What is the formula for carbon tetrafluoride?
1. $C_4F_4$
2. $CF_4$
3. $CF$
4. $C_4F$
What is the correct name for the following compound: $SO_3$?
1. monosulfur oxide
2. monosulfur trioxide
3. sulfur trioxide
4. sulfoxide
What is the chemical formula for dinitrogen heptafluoride?
1. $N_7F_2$
2. $N_2F_7$
3. $NF_12$
4. $N_2F_9$

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Which of the following compound does not contain a polyatomic ion?
1. sodium carbonate
2. sodium sulfate
3. sodium sulfite
4. sodium sulfide
What is the IUPAC name of $CuCl_2$?
1. copper (I) chloride
2. copper (II) chloride
3. copper (III) dichloride
4. copper dichloride
According to VSEPR theory, the molecular geometry for $"CH"_"3"^{+}$ is
1. tetrahedral
2. trigonal pyramidal
3. bent or angular
4. none of the above
What is the correct name for the formula $PbS$?

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Water is a polar molecule. This means that
1. the opposite ends of the molecule have opposite electrical charges
2. water molecules are linear, like a pole
3. water is one of the many hydrophobic molecules
4. the atoms in water have equal electronegativities
Which of the following is the formula for magnesium hydroxide?
1. $MgOH$
2. $Mg(OH)_2$
3. $MgO$
4. $MgH_2O$