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just olya [345]
4 years ago
13

What is the percent by mass of water in Na2SO4 • 10H2O?

Chemistry
1 answer:
netineya [11]4 years ago
6 0
Your answer is 55.92%
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Scilla [17]
At STP conditions, 0.25 moles of CO2(g), H2(g), NH3(g)

The answers are:
<span>1. Will contain the same number of molecules </span>
3. Will occupy the same volume

3 0
4 years ago
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If two atoms are isotopes of the same element the atoms must have
kodGreya [7K]

Answer:

Same number of protons but different number of neutrons

Explanation:

Isotopy is a phenomena in which atoms of the same element differs by the number of neutrons in their nucleus. While it is important to note that they have the same number of protons and hence the same atomic number, they have different mass numbers.

They have the same atomic numbers because an element can only have one atomic number. Hence, all atoms of that element are composed of the same number of protons but different neutron numbers.

4 0
3 years ago
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In which natural cycle must an important gas in Earth's atmosphere be fixed before plants can use it?
Maru [420]
The answer is C . nitrogen cycle
5 0
3 years ago
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1.What are two factors that are necessary for hurricane development?
Alisiya [41]

Answer:

1. tropical storms and hurricanes

2.After a cold front moves through your area, you may notice that the temperature is cooler, the rain has stopped, and the cumulus clouds are replaced by stratus and stratocumulus clouds or clear skies.

3.Warm fronts often bring stormy weather as the warm air mass at the surface rises above the cool air mass, making clouds and storms. Warm fronts move more slowly than cold fronts because it is more difficult for the warm air to push the cold, dense air across the Earth's surface.

Explanation:

7 0
3 years ago
What is isotope <br>the percentage of the solid components of soil​
zubka84 [21]

Answer:

an isotope consists of two or more forms of the same elements that contains equal number of protons but different number of neutrons in their nuclei but differ in relative atomic mass but not in chemical properties

The percentage of soil components of the soil is: inorganic components

-soil particles

-mineral elements = 45%

-water or moisture= 25%

- air= 25%

organic components

-humus or decayed organic matter= 5%

-living organisms

4 0
3 years ago
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