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ollegr [7]
3 years ago
5

Information on caffeine molecules with 3 uses and 3 properties ​

Chemistry
1 answer:
Setler [38]3 years ago
4 0

Answer:

it's uses

1)To improve mental alertness

2) For treating migraine headaches.

3) It increases the blood adrenaline levels

it's properties

1) It is white, odorless and hygroscopic crystalline solid

2) It tastes bitter

3) It is soluble on water

Don't forget to make me brainlist plz

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Why was there so much disagreements among the ancient greeks about the nature of the atoms?
olga2289 [7]
It is because in that time science was not established. This is, the experimentation to test hypotheses, which is a fundamental part of the scientific method, was not applied.

Atoms can not be seen, then they could only reflect or philosophize on this matter. This method is not able to give good answers to so complicated scientific matters.

 
4 0
3 years ago
What is the mass of an electron?
Lesechka [4]

Answer:

the answer is 0 amu I hope it helps

6 0
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In a percentage composition investigation a compound was decomposed into its elements: 20.0 g of calcium, 6.0 g of carbon, and 2
inysia [295]

The percentage composition of this compound : 40%Ca, 12%C and 48%O

<h3>Further explanation</h3>

Given

20.0 g of calcium,

6.0 g of carbon,

and 24.0 g of oxygen.

Required

The percentage composition

Solution

Total mass of compound :

=mass calcium + mass carbon + mass oxygen

=20 g + 6 g + 24 g

=50 g

Percentage composition :

  • Ca-calcium

\tt \dfrac{20}{50}\times 100\%=40\%

  • C-carbon

\tt \dfrac{6}{50}\times 100\%=12\%

  • O-oxygen

\tt \dfrac{24}{50}\times 100\%=48\%

3 0
2 years ago
What is a compound
Mariulka [41]

Answer:

B

Explanation:

because sea water taste like Salt

8 0
2 years ago
Read 2 more answers
A gate made of painted iron is beginning to rest in areas where the paint has worn away why is the formation of rust considered
Pavel [41]

Answer:

because it is two substances reacting together to create a new substance

Explanation:

when iron rusts, iron molecules react with the oxygen molecules creating iron oxide aka rust.

3 0
2 years ago
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