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Sveta_85 [38]
3 years ago
6

What conditions must occur before nuclear fusion begins during star formation?

Chemistry
1 answer:
allsm [11]3 years ago
7 0
Conditions such as high pressure and high temperature must occur.
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4 main parts of a flower Include the function of each pls help me
ZanzabumX [31]

Answer:

  • Calyx or sepals
  • Corolla
  • Androecium
  • Gynoecium

6 0
2 years ago
Problem: In each of the following situations, what type of filtration device would you use?
Shtirlitz [24]

Answer:

A. Filtration by gravity

B. Syringe filter

C. Syringe filter

D. Filtration by gravity

E. Syringe filter

F. Filtration by gravity / Vacuum filtration.

Explanation:

Filtration is a mixture of separation techniques to separate solids from liquids. The filtration can be done by gravity, by pressure or by vacuum. The correct filtration is chosen by the characteristics of the mixture.

A. The particles are big, so it's possible to use a funnel and a filter paper with the right numeration (the diameter of the pores must be smaller than the particles). The filtration will happen by gravitation.

B. Because the volume is too small (1 mL), it can be used as a syringe filter, a small device in which the solution is put in the syringe, and then, by pressure, the solution goes from the filter. Thus, the filtration is done by pressure.

C. As letter B, the small volume indicates a pressure filtration by a syringe filter.

D. In this case, such as letter A, it's possible to use gravitation filtration.

E. Because of the volume is too small, such as letters B and C, the pressure filtration by a syringe filter is more indicate.

F. In this case, the filtration can be done by gravitation, and a vacuum can be added to accelerate it because is a small volume with solid impurities.

6 0
3 years ago
A bathtub is filled with 100 L of water. A cat jumps in and the volume rises to 125 L. If the cat has a mass of
kirza4 [7]

Answer:

<h2>The answer is 3.2 g/L</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass of cat = 400 g

volume = final volume of water - initial volume of water

volume = 125 - 100 = 25 L

The density of the cat is

density =  \frac{400}{125}  =  \frac{16}{5}  \\

We have the final answer as

<h3>3.2 g/L</h3>

Hope this helps you

3 0
3 years ago
=During digestion, water is both added and removed. Which area of the digestive system removes water?
saw5 [17]

Answer: Large intestine

Explanation:

5 0
2 years ago
Does anyone know how to do this?
o-na [289]

Answer:

nop sorry

Explanation:

3 0
2 years ago
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