General Chemistry Quiz

What is the atomic number of an element?

• The number of protons in the nucleus

• The number of neutrons in the nucleus

• The number of electrons in the nucleus

• The combined number of protons and neutrons

Which of the following is a chemical change?

• Melting of ice

• Boiling of water

• Rusting of iron

• Crushing of a can

What is the formula for calculating molarity (M)?

• Moles of solute per liter of solvent

• Moles of solute per kilogram of solvent

• Moles of solute per liter of solution

• Moles of solute per cubic meter of solution

Which gas law states that the volume of a gas is directly proportional to its temperature at constant pressure?

• Boyle's Law

• Charles's Law

• Avogadro's Law

• Dalton's Law

What is the common name for the compound NaHCO3?

• Table salt

• Baking soda

• Vinegar

• Bleach

Which type of bond involves the transfer of electrons between atoms?

• Covalent bond

• Ionic bond

• Metallic bond

• Hydrogen bond

What is the pH of a neutral solution at 25°C?

• 0

• 7

• 14

• 4

Which of the following is an example of an exothermic reaction?

• Melting of ice

• Evaporation of water

• Combustion of gasoline

• Photosynthesis

Which state of matter has a definite shape and volume?

• Solid

• Liquid

• Gas

• Plasma

What is the molecular formula for glucose?

• C2H4O2

• C6H12O6

• C3H8O

• C5H10O5