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Sergeu [11.5K]
3 years ago
5

Where should the author of a case study introduce the central question of the text?

Chemistry
2 answers:
Contact [7]3 years ago
8 0

Answer:

b!

Explanation:

Shtirlitz [24]3 years ago
7 0

Answer:

B. at the beginning  

Explanation:

i took the test

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Can sedimentation and decantation be used for all types of mixtures? Explain
Bumek [7]

Explanation:

1. Sedimentation and decantation cannot be used for all types of mixtures.

Decantation is a separation technique in which is used to separate immiscible liquids or mixtures containing liquid and solids within them.

In decantation, gravity is used to bring the denser materials to settle at the bottom.

For homogenous mixtures, it is not possible to use decantation. A solution of sugar and water will not decant.

2. Yes, mass of an object reduces the settling time of such object in a mixture.

The higher the mass, the faster the rate of settling. Also, as we know, mass is directly proportional to density. A body with a high density will settle faster in solution.

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3 years ago
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NH4

Explanation:

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