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lyudmila [28]
3 years ago
10

??? What’s the answer???

Chemistry
2 answers:
inn [45]3 years ago
4 0

Answer:

The first one is physical because the color is changing from clear to red. Red food coloring isn't a chemical lol.

The second is chemical because two chemicals come together to make the color yellow.

fomenos3 years ago
4 0
The first one is physical, the second one is chemical
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What happens to a water bottle in a freezer and why
Andrews [41]
The water well begin to freeze and turn into soild. why? because the temperature of the the freezer is getting the water bottle cold so when that cold temperature hits that that bottle which has liquid in it so you should know that when liquid is into cold air it well so be soild so when you put the water bottle in the freezer it will be soild. 
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4 years ago
Calculate the molarity of a solution containing 9.25 mol H2SO4 in 2.75 L of solution.
Akimi4 [234]

Answer:

THE MOLARITY OF THE SOLUTION IS 3.36 MOLE/L

Explanation:

First we must understand what molarity is.

Molarity is the number of mole per unit volume of solution. In this question, 9.25 mole of H2SO4 was given in 2.75 L of solution.

Molarity is written in mole per dm3 or L.

So we can calculate the molarity:

9.25  ole of H2SO4 = 2.75 L of solution

The number of mole in 1 L of solution will be:

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8 0
4 years ago
How does temperature, pressure and surface area affect the dissolving process
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This will convert the whole element of Cu will get changed into Zn. As, it absorbs by the positron, the atomic number gets increased from 29 to 30.

4 0
3 years ago
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