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Alex777 [14]
3 years ago
7

MAX POINTS! BRAINLIEST TO BEST ANSWER

Chemistry
2 answers:
IceJOKER [234]3 years ago
8 0

How much NH4Cl can you dissolve in 200 g of water at 90° to make a saturated solution?

C) 140

kaheart [24]3 years ago
7 0

Answer:

you can dissolve 140 NH4CI in 200 g of water at 90° to make a saturated solution

so the answer is C

~batmans wife dun dun dun.....

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Which term is defined as the change in the direction of light when it goes from one medium into a different medium?
vovikov84 [41]
The term defined as the change in direction of light when it goes from one medium into a different medium is refraction.

Refraction is the change of direction on the propagation of a beam of light when it passes from a medium to other; this only happens when the light travels at different speeds in both media.

When a beam of light that travels in the air incedes in a slab of glass, part of the beam is reflected (bounces) and part is refracted (it penetrates in the glass and changes the angle).


Also,due to the different speeds of light in air and water, when a beam of light passes from air to water, it refracts.
 
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3 years ago
How many protons, electrons, and neutrons does an atom with atomic number 50 and mass number 125 contain?
kherson [118]
The number of protons in an atom is equal the atomic number (= 50)

The sum of the Neutrons and Protons is the Atomic Mass (=125)
Neutrons + Protons=125

Plug in for the protons (50)
Neutrons +(50)=125

Then, once solved, we have Neutrons = 75

Assuming the atom is NOT an ion, the amount of electrons is equal to the number of protons. (protons=electrons=50=50)

Therefore:
There are 50 electrons, 50 protons, and 75 electrons.

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3 years ago
Is frying an egg a physical or chemical change
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Chemical change. The heat from frying an egg causes the egg's protein to change permanently in texture and in appearance through a process. 
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Are biohazard people real or just video games?
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Answer:

Yes, they are real.

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Can a human be a biohazard?

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Hope this helps!

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