Experience 4: Law of Conservation of Mass Weekly Review

Front

Which law states that mass is neither created nor destroyed in a chemical reaction?

Back

Law of Conservation of Mass

Front

Back

18

Front

Which element is represented by the symbol 'Na' on the periodic table?

Back

Sodium

Front

Back

4

Front

Back

Front

What is the atomic number of Carbon (C) on the periodic table?

Back

6

Front

Back

2

Front

Which of the following best describes the rearrangement of atoms in a chemical reaction?

• Atoms are destroyed and new atoms are created.
• Atoms are rearranged to form new substances.
• Atoms are converted into energy.
• Atoms remain unchanged.

Back

Atoms are rearranged to form new substances.

Front

Which element is represented by the symbol 'O' on the periodic table?

Back

Oxygen

Front

Back

2