Q: Answer the question

Which of the following is formed when two elements combine chemically?
OPTIONS:
- an atom
- a compound
- an electron
- a mixture

A: a compound

Q: Answer the question

Which tool is used to determine the mass of an object?
OPTIONS:
- ruler
- beaker
- balance
- thermometer

A: balance

Q: Answer the question

Which element is most likely to form an ion with a negative 2 charge?
OPTIONS:
- oxygen
- nitrogen
- beryllium
- magnesium

A:
oxygen