Samantha & Ryan are investigating an unknown substance. They make the following observations about the substance: 1. it is black 2. it has a dull luster 3. it weighs 6.50 g 4. it is solid 5. it is roughly 2 inches long 6. it does not conduct electricity 7. it takes up a volume of 2.00 mL 8. it has a density of 3.25 g/mL Some of these properties will change if more sample were added to their observations. Some will stay the same. Which properties will change? Choose the numbers A) 1,2,3,8 B) 3,5,7,8 C) 3,5,7 Eliminate D) 3,6,8

Question

Rudy Patel

Chemistry

20 November, 16:40

Samantha & Ryan are investigating an unknown substance. They make the following observations about the substance: 1. it is black 2. it has a dull luster 3. it weighs 6.50 g 4. it is solid 5. it is roughly 2 inches long 6. it does not conduct electricity 7. it takes up a volume of 2.00 mL 8. it has a density of 3.25 g/mL Some of these properties will change if more sample were added to their observations. Some will stay the same. Which properties will change? Choose the numbers A) 1,2,3,8 B) 3,5,7,8 C) 3,5,7 Eliminate D) 3,6,8

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Catalina Oneill · Answer 1

The answer is C). If more sample were added, it would become longer than 2 inches, it would be heavier and weigh more, and because there is more it would take up more volume. However the density would not change as density is m/V and if it is the same sample mass and volume would increase at the same rate.