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sammy [17]
3 years ago
7

In experiments, variation is not present. O True O False

Chemistry
1 answer:
stiv31 [10]3 years ago
5 0

Answer:

False

Explanation:

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1.
Alex_Xolod [135]

i think that the answer is D

3 0
3 years ago
A sample of hydrogen gas is placed in a 0.500 L container at 295K. The gas pressure is 1.442 bar. How many moles of H2 gas are i
steposvetlana [31]

Answer:

0.0294

Explanation:

5 0
3 years ago
Salt crystals are shaped like cubes. Salt is part of the _____. isometric crystal system monoclinic crystal system hexagonal cry
sweet [91]
Salt crystals are shaped like cubes. Salt is part of the isometric crystal system. 
6 0
3 years ago
Read 2 more answers
In your opinion, will all the objects in the Universe last forever? Justify your answer.​
Alona [7]

Answer:

Maybe (yes/no)

Explanation:

Cause some theories about the end of the universe. The fate of the universe is determined by its density. The preponderance of evidence to date, based on measurements of the rate of expansion and the mass density, favors a universe that will continue to expand indefinitely, resulting in the "Big Freeze" scenario below.

6 0
2 years ago
We dissolve 93 grams of sodium sulfate (Na2SO4) in 20 grams of water. What is the percent by mass of sodium sulfate in this solu
dlinn [17]
It should be for the total solution of 93 plus 20 grams which is 113 grams so 93 divided by 113 grams comes to 82.3% sodium sulfate and this can be checked by multiplying 113 grams by 0.823 which results in 93 grams of sodium sulphate. 
4 0
3 years ago
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