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Tema [17]
3 years ago
9

Why is there a vast amount of salt water on Earth?

Chemistry
1 answer:
Diano4ka-milaya [45]3 years ago
3 0
Water is an excellent solvent, salt is carried by the water due to erosion and carried to the ocean.
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A mixture of He, Ne, and N2 gases are a pressure of 1.348. If the pressures of He and Ne are 0.124 atm, what is the partial pres
Aleks04 [339]

The Best Answer: 1 - (.47+.23) = 0.30

If Ne has a mole fraction of 0.47 (or 47/100) and Ar is 0.23, then H2(or He) has a mole fraction of 0.30

This means the gas mixture is 30/100 H2(or He).

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5 0
2 years ago
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How did Ernest Rutherford change the atomic model?
nadya68 [22]

Answer:

D. He showed that most of an atom's mass was located in the atom's

nucleus.

Explanation:

Ernest Rutherford changed the atomic model because of his experiment which was the gold foil experiment. A beam of alpha particles was aimed at a piece of gold foil, most particles passed through but some were scattered backward which showed that the middle of an atom (nucleus) is the where most of the mass is located.

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Magnesium hydroxide is only very slightly soluble in water. The reaction by which it goes into solution is: Mg(OH) 2 (s) rightle
prohojiy [21]

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there will a definite decrease in solute solution

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acid reaction acting upon negative charge.

3 0
2 years ago
A sample of oxygen has a volume of 7.84 mL at a pressure of 71.8 mmHg and a
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here is an attached photo with a detailed explanation, good luck!

4 0
3 years ago
if the density of a bar of gold is 19.3g/cm^3and you cut it into four pieces , what is its density of each piece of gold
AlladinOne [14]
Density is an intrinsic property, so it is independent of the amount of substance present: one gold coin would have the same density as a solid gold boulder.

So if the density of gold is 19.3 g/cm³, the density of a bar of gold and the pieces into which the bar is cut would all be 19.3 g/cm³.
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