1) What is the role of salt in a saline solution or a solution of saltwater? a) Solution b) Solute c) Solvent d) Mixture 2) What do we have after combining two chemical elements? a) Combination b) Composition c) Mixture d) Compound 3) Which scientist is credited with the invention of the periodic table? a) Mendeleev b) Rutherford c) Newton d) Darwin 4) Which gas accounts for the largest part of the air? a) Carbon b) Hydrogen c) Nitrogen d) Oxygen 5) What is the chemical name of the compound NaCl? a) Sodium chloride b) Potassium chloride c) Hydrogen peroxide d) Iodine

Chemistry

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