What is semipermeable membrane?

Chemistry

1 answer:

Nutka1998 [239]3 years ago

8 0

Answer:

A Semipermeable membrane is a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by diffusion or occasionally by more specialized processes of facilitated diffusion, passive transport or active transport.

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In a chemical change, the substance that you end up with is the

elena55 [62]

The reactant is what you begin with.
The product is what you end up with (so the answer is B)

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3 years ago

Read 2 more answers

Given the following list of densities, which materials would float in a molten vat of lead provided that they do not themselves

vampirchik [111]

Answer:

b. glass and charcoal

Explanation:

Step 1: Given data

Density of Pb: 11.4 g/mL

Density of Glass: 2.6 g/mL

Density of Au: 19.3 g/mL

Density of charcoal: 0.57 g/mL

Density of platinum: 21.4 g/mL

Step 2: Determine which material will float in molten lead

Density is an intrinsic property of matter. Less dense materials float in more dense materials. The materials whose density is lower than that of lead and will therefore float on it are glass and charcoal.

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3 years ago

Santiago's car has an overall average speed of 25 cm/s. If he could increase his car's overall average speed by 10%, what would

Evgen [1.6K]

Given:

The overall average speed = 25 cm/s.

The overall average speed increased by 10%.

To find:

The new overall average speed.

Solution:

We have,

Overall average speed = 25 cm/s.