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anyanavicka [17]

3 years ago

9

Describe how water molecules move through the cell membrane during osmosis. Water molecules move through the cell membrane durin

g osmosis by…

1 answer:

sdas [7]3 years ago

4 0

Sucking in the water. Osmosis is just like putting a raisin in water it turns right back into a grape

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if the volume of a gas contracted from 648 mL to 0.15L, what was its final pressure if it started at a pressure of 485 kpa

bija089 [108]

Answer:

2100 kPa

Explanation:

The temperature is constant, so the only variables are pressure and volume.

We can use Boyle’s Law.

p₁V₁ = p₂V₂ Divide both sides of the equation by V₂

p₂ = p₁ × V₁/V₂

p₁ = 485 kPa; V₁ = 648 mL

p₂ = ?; V₂ = 0.15 L = 150 mL Calculate p₂

p₂ = 485 × 648/150

p₂ = 2100 kPa

4 0

3 years ago

Would silver react with dilute sulfuric acid?why or why not?

soldi70 [24.7K]

No, Silver will not react with dilute sulfuric acid.

<u>Explanation:</u>

As Silver has the least reactivity, it is not capable to reduce hydrogen ion from sulfuric acid, even when the acid is in concentrated state. But if the concentrated acids are heated then the Silver may form Ag+ ions.

But silver (Ag) can react with the hot concentrated sulfuric acids ( $H_{2} S O_{4}$ ). As mentioned in below to equation.

$2 A g+2 H_{2} S O_{4} \rightarrow A g_{2} S O+2 H_{2} O$

So if dilute sulfuric acid is used then there will not be any kind of reaction with silver ions.

4 0

3 years ago

A molecule has two atoms that are bonded to the central atom and one lone pair of electrons around this central atom. What is th

dezoksy [38]

Bent, the lone pair on the central atom push away the other atoms and the most stable configuration of the lone pair and two atoms is trogonal planar. But since you cannot see the lone pair, the shape of the three atoms is bent.

4 0

4 years ago

Which of these statements is not true about chemical reaction rates?

oksian1 [2.3K]

The reaction rates are not always constant so the last one is not always true

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4 years ago

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How does the temperature and pressure change inside the earth, moving downward from the crust to the core?

Rus_ich [418]

B. Both temperature and pressure increase

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3 years ago

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