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NNADVOKAT [17]
3 years ago
15

What leads to the development of a theory

Chemistry
1 answer:
creativ13 [48]3 years ago
6 0
A hypothesis leads to the development of a theory.
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Not sure if my answers are even correct. i am so confused
Mamont248 [21]

Answer:

#3 is the percentage for sodium i believe and 4 is right

Explanation:

7 0
3 years ago
Why are lightning formed in clouds?
VladimirAG [237]

Explanation:

Because opposites attract, the negative charge at the bottom of the storm cloud wants to link up with the ground’s positive charge. Once the negative charge at the bottom of the cloud gets large enough, a flow of negative charge called a stepped leader rushes toward the Earth. The positive charges at the ground are attracted to the stepped leader, so positive charge flows upward from the ground. When the stepped leader and the positive charge meet, a strong electric current carries positive charge up into the cloud. This electric current is known as the return stroke. We see it as the bright flash of a lightning bolt.

Thunder and lightning occur at roughly the same time although you see the flash of lightning before you hear the thunder. This is because light travels much faster than sound

3 0
3 years ago
What the sample will look like after the temperature is increased from 300 K to 450 KK at constant pressure?
sleet_krkn [62]

Answer:

The sample will look expanded and occupy more space.

Explanation:

Since, the pressure is constant here, but the temperature is changed. Therefore, according to Charles' Law Volume is directly proportional to Temperature, provided the pressure is kept constant. Mathematically:

V1/T1 = V2/T2

V1 = (T1/T2)(V2)

V1 = (300 k/450 k)(V2)

<u>V1 = (0.67)V2</u>

The equation indicates that The fina volume of the gas V2 will be greater than the initial volume V1. <u>Thus, sample will look expanded and occupy more space than the previous state.</u>

5 0
3 years ago
Help please
Serggg [28]

Answer:

part a: How much of the isotope will you have left after 10 years?

  • 100/2 = 50 g

part b: How much of the isotope will you have left after 20 years?

  • 50/2 = 25 g

part c: How many half-lives will occur in 40 years?

  • 40/10 = 4
8 0
3 years ago
Which of the following liquids is most volatile? Select one: a. cooking oil b. motor oil c. alcohol d. water
LenaWriter [7]

Answer:

Alcohol.

Explanation:

It has the lowest boiling point and high vapour pressure.

7 0
4 years ago
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