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Questions and Answers
According to the rules for significant figures, the sum of 0.027 gram and 0.0023 gram should be expressed as
According to the rules for significant figures, the sum of 0.027 gram and 0.0023 gram should be expressed as
- 0.03 g
- 0.030 g
- 0.029 g
- 0.0293 g (correct)
Which measurement contains three significant figures?
Which measurement contains three significant figures?
- 0.050 g
- 0.056 g
- 0.05 g
- 0.0563 g (correct)
Which is a characteristic of all mixtures?
Which is a characteristic of all mixtures?
- Their composition generally can be varied
- They are homogenous
- They are heterogeneous (correct)
- Their composition is generally fixed
Rutherford’s famous experiment using alpha particles to bombard a thin sheet of gold foil indicated that most of the volume of the atoms in the foil is taken up by
Rutherford’s famous experiment using alpha particles to bombard a thin sheet of gold foil indicated that most of the volume of the atoms in the foil is taken up by
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Compared to the entire atom, the nucleus of the atom is
Compared to the entire atom, the nucleus of the atom is
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