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Vitek1552 [10]
3 years ago
6

Astronauts on the Moon can jump higher than if they were on Earth. This is because...

Chemistry
2 answers:
Mekhanik [1.2K]3 years ago
4 0
This is because of Gravity. Your muscles or your entire body is at ease or whatever because the moon has more mass than earth. 
AnnZ [28]3 years ago
3 0

The Moon has less mass than the Earth, which means it has less gravity than the Earth as well. (Also, there is WAY less atmosphere—as in, pretty much none—on the Moon than we're used to having press down on us constantly.)

Since the gravity isn't pulling on us as strongly on the moon as it is on Earth, we can jump higher and further with more ease. That's because our muscles (and all other body parts involved, like our bones and joints and heart and lungs) all were developed and conditioned to work in the stronger gravity on Earth's surface.

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2 moles of sodium chloride are dissolved in 8 liters of water. What is its molarity (M) ?
otez555 [7]

Answer:

0.25M

Explanation:

Since molarity is defined as the amount of substance in 1 liter of a solution, and amount in chemistry refers to the number of moles, molarity can be found using the equation below:

Molarity= number of moles ÷ volume in liters

Given: number of moles= 2

Volume= 8L

∴ Molarity of NaCl

= 2 ÷8

= 0.25M

4 0
3 years ago
Iron will most likely react with which of the following elements?
gtnhenbr [62]

Answer:

bromine (Br)

Explanation: Iron enters into a reaction with substances of different classes, and interacts with oxygen, carbon, phosphorus, halogens (bromine, iodine, fluorine and chlorine), and also nitrogen. These are not all the reactions of iron – this metal reacts with many elements.

5 0
3 years ago
Equal amounts of N2 and O2 are added, under certain conditions, to a closed container. Which changes occur in the reverse reacti
geniusboy [140]
1) The forward reaction is N2 (g) + O2 (g)  → 2NO

(that reaction requires special contitions because at normal pressures and temperatures N2 and O2 do not react to form another compound.

2) The equiblibrium equation is

  N2 (g) + O2 (g)  ⇄ 2NO

3) Then, the reverse reaction is

2NO → N2(g) + O2(g)

Answer: 2NO → N2(g) + O2(g)
4 0
3 years ago
How many grams of KCI can be dissolved in 63.5. g of water at 80
Masteriza [31]

Answer:

35.8 g

Explanation:

Step 1: Given data

Mass of water: 63.5 g

Step 2: Calculate how many grams of KCl can be dissolved in 63.5. g of water at 80 °C

Solubility is the maximum amount of solute that can be dissolved in 100 g of solute at a specified temperature. The solubility of KCl at 80 °C is 56.3 g%g, that is, we can dissolve up to 56.3 g of KCl in 100 g of water.

63.5 g Water × 56.3 g KCl/100 g Water = 35.8 g KCl

8 0
3 years ago
Living organisms all have dna and rna which are both
nadya68 [22]
They are both helix it is just that DNA has two and RNA has one
4 0
3 years ago
Read 2 more answers
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