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34kurt
3 years ago
12

Are we the only person in the universe?

Chemistry
1 answer:
OlgaM077 [116]3 years ago
3 0

Answer:

no..? how would we be the only person in the universe

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What is the volume of 1.56 kg of a compound whose molar mass is 81.86 g/mole and whose density is 41.2 g/ml?
hjlf

Answer:

v = 37.9 ml

Explanation:

Given data:

Mass of compound = 1.56 kg

Density = 41.2 g/ml

Volume of compound = ?

Solution:

First of all we will convert the mass into g.

1.56 ×1000 = 1560 g

Formula:

D=m/v

D= density

m=mass

V=volume

v = m/d

v =  1560 g / 41.2 g/ml

v = 37.9 ml

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3 years ago
What is the economic importance of phosphorus in Canada or elsewhere in the world?
vladimir1956 [14]

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6 0
3 years ago
Calculate the frequency of a yellow light with a wavelength of 5.60 x 10-9 m.
Whitepunk [10]

Answer:

47

Explanation:

8 0
3 years ago
A gas has a volume of 3L at 200 kPa. What will its volume be if the pressure is changed to 500 kPa?
marta [7]

Answer:

6L

Explanation:

<em>if it's 3L per 200kPa</em>

then it would be;

4L per 300kPa

5L per 400kPa

6L per 500kPa

that's how i'd work it out in my head, hope it helps, but not sure though!

5 0
3 years ago
Please help me on 9 and 10
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C and A because the product of a matter will always be the same and just google A.
4 0
3 years ago
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