Question

Question 3 (1 point)
Kate has a sample of an unknown solid. She performed a series of experiments to determine some of its properties. Her experiments are described in the chart.


Experiment Procedure
1 Place the sample over heat and determine at which temperature it changes state.
2 Expose the sample to an acid, a base, and water and observe the result.
3 Measure the volume and mass of the sample and divide them.
4 Place the sample in contact with oxygen gas and flame and observe the result.

Which of the following is correct about Kate's experiments?

a
Experiments 1 and 2 were to find physical properties
b
Experiments 3 and 4 were to find physical properties.
c
Experiments 1 and 3 were to find chemical properties.
d
Experiments 2 and 4 were to find chemical properties.
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Answer 1

d

Experiments 2 and 4 test chemical reactivity (reaction with acids/bases/water and with oxygen/flame), while 1 (melting/boiling point) and 3 (density) are physical properties.