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natka813 [3]
3 years ago
12

Explain why neptune cannot be seen without a telescope

Chemistry
1 answer:
Law Incorporation [45]3 years ago
8 0
Because it's to little
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A chemist uses 4.0 l of sulfuric acid solution to produce 3.2 gram of product. how much of the same sulfuric acid solution is ne
matrenka [14]
4 l ------ 3,2 g
x l ------ 8 g

x = 8 g × 4 l / 3,2 g = 10 l

Answer: 10 l of sulfuric acid is needed to produce 8 g of product.

:-) ;-)
3 0
3 years ago
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Deprenyl is an enzyme inhibitor that helps prevent the metabolism of dopamine in the brain. The chemical formula of Deprenyl is
mel-nik [20]

Answer:

0.007 g of deprenyl dose is required fro the patient with body mass of 70 kilograms.

Explanation:

The dose for treating Parkinson’s disease = 100 μg/kg body weight

Mass of patient's body = 70 kg

Amount of dose of deprenyl required = 100 μg/kg × 70 kg = 7,000 μg

1 μg = 0.00001 g

7,000 μg = 7,000 × 0.000001 g = 0.007 g

0.007 g of deprenyl dose is required fro the patient with body mass of 70 kilograms.

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3 years ago
Apakah biodiversiti ? ​
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Biodiversiti adalah kehidupan di dunia termasuk manusia, hewan dan tumbuhan
6 0
3 years ago
What is the final pressure of a system (atm) that has the volume increased from 0.75 l to 1.1 l with an initial pressure of 1.25
lana66690 [7]
Boyle's law states that pressure is inversely proportional to volume of gas at constant temperature 
PV = k
where P - pressure , V - volume and k - constant 
P1V1 = P2V2
where parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation 
substituting these values in the equation 
1.25 atm x 0.75 L = P x 1.1 L
P = 0.85 atm 
final pressure is B) 0.85 atm 
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3 years ago
The allotropic form of a non – metal is a good conductor of electricity. Name the nonmetal.
SashulF [63]

Answer:

carbon with graphite as the allotrope

8 0
2 years ago
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