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Oliga [24]
3 years ago
5

PLEASE HELP WILL GIVE BRAINLEST

Chemistry
1 answer:
aliina [53]3 years ago
8 0

Answer:

Option A.

Lower air pressure results in a lower boiling point

Explanation:

This is because in an open system, the lower the pressure the lesser the energy that will be required for boiling point. The is little or no collision of air molecules with the surface of the liquid

But if there is increase in pressure, more energy will be required to get to boiling point because there will be strong collision between air molecules and surface of the liquid.

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Help ASAP! I'm kind of stuck on what you are supposed to put for theoretical / predicted yield and what is the actual yield for
Alex777 [14]
The theoretical yield of a product is the calculated amount of what you are supposed to get by the end of a reaction assuming that nothing is lost, but the actual yield of the product is what you actually get when you carry out the reaction in real life conditions.
3 0
2 years ago
Someone pls help me I will make you brain
sertanlavr [38]

Answer:

I believe the answer is II and III

Explanation:

I'm not sure if III is right cause I cannot read the last word but I think it's OK.

Hope this helped :)

4 0
2 years ago
Find the density of an empty tissue box with a mass of 345 grams and a volume of 1125 cm3.
trasher [3.6K]

Answer:

The answer is

<h2>0.307 g/cm³</h2>

Explanation:

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

density =  \frac{mass}{volume}

From the question

mass of box is 345 g

volume = 1125 cm³

The density of the object is

density =  \frac{345}{1125}  \\  = 0.3066666...

We have the final answer as

<h3>0.307 g/cm³</h3>

Hope this helps you

4 0
3 years ago
Two magnets are stuch together.what might you have to do to get them separet?
jek_recluse [69]

Answer:

all you have to do is muster the strength to pull them apart. Because negatives and opposites attract.

Explanation:

7 0
3 years ago
What is the part of plant from where <br>new flowers of fruit grows called​
Andru [333]

Answer: it is called the ovary

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2 years ago
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