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kumpel [21]
4 years ago
15

The action is: earth pulls on moon. what is the reaction?

Chemistry
1 answer:
TiliK225 [7]4 years ago
3 0
Earth pulls on Moon. What is the reaction?
The action is: Earth pulls on Moon. What is the reaction?
-Moon pulls on Sun.
-Moon pulls on Earth.
-Earth pushes on Moon.
-Moon pushes on Earth.


-Both pulls are the same.
-Moon's pull
-Earth's pull

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D. A weakly acidic solution.

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What are products of a reaction between KOH(aq) and HCI(aq)
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A cylinder, with a piston pressing down with a constant pressure, is filled with 2.00 moles of a gas (n1), and its volume is 50.
sattari [20]

Answer:

40.0 L.

Explanation:

  • We can use the general law of ideal gas: <em>PV = nRT.</em>

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant,

T is the temperature of the gas in K.

  • If P and T are constant, and have different values of n and V:

<em>(V₁n₂) = (V₂n₁).</em>

V₁ = 50.0 L, n₁ = 2.0 moles,

V₂ = ??? L, ​n₂ = 2.0 mol - 0.4 mol = 1.6 mol.

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8 0
4 years ago
A solution is prepared by mixing equal volumes of 0.16 M HCl and 0.52 M HNO3. (Assume that volumes are additive.)
slega [8]

Answer:

The pH of the final solution is 0.16 .

Explanation:

The pH of the solution is defined as negative logarithm of hydrogen ion concentration in a solution.

pH=-\log[H^+]

Concentration of HCl = 0.16 M

HCl(aq)\rightarrow H^+(aq)+Cl^-(aq)

HCl is a string acid .1 molar of HCl gives 1 molar of of hydrogen ions.

[H^+]=0.16 M

Concentration of HNO_3 = 0.52 M

HNO_3(aq)\rightarrow H^+(aq)+NO_{3}^-(aq)

Nitric is a string acid .1 molar of nitric acid gives 1 molar of of hydrogen ions.

[H^+]'=0.52 M

Total hydrogen ion concentration:

[H^+]''=[H^+]+[H^+]'

=0.16 M+0.52 M=0.68 M

The pH of the solution:

\pH=-\log[H^+]''=-\log[0.68 M]

pH = 0.16

The pH of the final solution is 0.16 .

3 0
4 years ago
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