Other questions in this quiz

2. In an ion, the number of electrons equals the number of protons

  • False
  • True

3. What is the general formula for alkenes?

  • CHn
  • CnH2n
  • C2nHn
  • CnH2n+2

4. Why are alloys stronger and harder than pure metals?

  • The added metal is harder than the original metal.
  • Different sized atoms disrupt the regular arrangement of atoms and so the layers cannot slide over each other.
  • Different types of free electrons repel each other and so keep the metal in a certain shape.
  • The atoms are now bigger so there is less room to move.

5. Which of these is not an alternative fuel to crude oil?

  • Sulfur dioxide
  • Ethanol
  • Biodiesel
  • Hydrogen gas

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