21580

02.08.2019 • 

Chemistry

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

Ответ:

leannesmith90101

03.06.2020

Chemistry

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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.

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Ответ:

rosa1423

03.06.2020

Chemistry

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The answer is C for sure guys

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Ответ:

UndeadDelta

31.10.2020

Chemistry

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A plot is, basically, the events that make up a story or are part of a story. The plot can have very little to very many events. It's kind of like the storyline.

:)

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