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iren2701 [21]
3 years ago
10

Which of the following does NOT involve a physical change?

Chemistry
1 answer:
jasenka [17]3 years ago
4 0

Answer:mixing decomposing

Explanation:

Melting and grinding changes the physical form and mixing decomposing doesn’t

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A. Density of object = 0.86 g/mL

B. The object will float in the water.

Explanation:

The following data were obtained from the question:

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Volume of water + Object = 7.59 mL

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Volume of object = (Volume of water + Object) – (Volume of water)

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Mass (m) of object = 1.2 g

Volume (V) of object = 1.39 mL

Density (D) of object =?

Density = mass /volume

Density = 1.2/1.39

Density of object = 0.86 g/mL

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