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3 years ago

Why do science textbooks tend to focus on three states of matter rather than four?

2 answers:

8 0

There are three states of matter:

- Solid
- Liquid
- Gas

There is also one more, which is not mentioned much:

- Plasma

This state of matter is not mentioned much because it is not found in a large amount. We can't see plasma. It has properties that are different than the other states.

Andru [333]3 years ago

8 0

Plasma is not mentioned just because it is a sort of supercharged state. This state does not follow the same chemical rules of the other states because it is so highly excited.

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The substances below are listed by increasing specific heat capacity value. Starting at 30.0 °C, they each absorb 100 kJ of ther

JulijaS [17]

The heat change is related to specific heat as

Heat change = mass of substance X specific heat X change in temperature

So if we are considering same amount of substance

and we are starting with the same temperature

the change in temperature will be inversely proportional to the specific heat

higher the specific heat lower the temperature change

Thus the change in temperature will be least for the substance with highest specific heat.

Answer: Hydrogen

4 0

3 years ago

Some hormones enter cells via

pochemuha

ANSWER: receptor-meditated endocytosis
I’m not sure if this is what you’re looking for but this is correct. Next time please add the full question and possible answers. HOPE this helps someone please leave thanks if so.

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3 years ago

Tin has ten stable isotopes. The heaviest, 124Sn, makes up 5.80% of naturally occuring tin atoms. How many atoms of 124Sn are pr

matrenka [14]

The average atomic mass of Sn is 118.71 g/mol

the percentage of heaviest Sn is 5.80%

the given mass of Sn is 82g

The total moles of Sn will be = mass / atomic mass = 82/118.71=0.691

Total atoms of Sn in 82g = $6.023X10^{23}X0.691=4.16X10^{23}$

the percentage of heaviest Sn is 5.80%

So the total atoms of $Sn^{124}$ = 5.80% X $4.16X10^{23}$

Total atoms of $Sn^{124}$ = $2.41X10^{22}$ atoms

the mass of $Sn^{124}$ will be = $\frac{2.41X10^{22}X124}{6.023X10^{23}}=4.96g$

5 0

4 years ago

Hydrofluoric acid is what type of acid?

posledela

Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water. Solutions of HF are colourless, acidic and highly corrosive. It is used to make most fluorine-containing compounds; examples include the commonly used pharmaceutical antidepressant medication fluoxetine (Prozac) and the material PTFE (Teflon).

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3 years ago

How do you describe the particles in a liquid?

Anastasy [175]

Answer:

The particles in a liquid are close together (touching) but they are able to move/slide/flow past each other.

Explanation:

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3 years ago

Read 2 more answers