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VladimirAG [237]
3 years ago
10

Can I please know What are the answers for #s 1,2,3,4 ?

Chemistry
2 answers:
dimulka [17.4K]3 years ago
8 0
1 wavelength, 2 crest, 3 trough, 4 wave height <3
vaieri [72.5K]3 years ago
4 0
I agree with Cora on these questions.
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An object with a mass of 10.0 kg is moving at a speed of 5.00m/s. The kinetic energy of the mass is
NemiM [27]
KE = (1/2)mv^2
m = 10.0 kg
v = 5.00 m/a

KE = (1/2)(10.0)(5.00)^2 = (1/2)(10.0)(25.0) = 125 J

C. 125 J
7 0
3 years ago
Please check what I have and help!!
steposvetlana [31]
Moles = mass(g) / ar

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8 0
3 years ago
Why do cars tires need more air in the winter then in the summer?
Anastaziya [24]
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5 0
3 years ago
Two liters of oxygen (O2) is collected over water at 20oC. If the total pressure in the container is 95.00 kPa, what is the part
garri49 [273]

Answer:

THE PARTIAL PRESSURE OF OXYGEN GAS IN THE CONTAINER IS 92.67kPa WHICH IS OPTION B.

Explanation:

To calculate the partial pressure of oxygen gas collected over water, we use

Ptotal = Poxygen + P water

It is worthy to note that when oxygen is collected over water, it is mixed with water vapor and the total pressure in the container will be the sum of the pressure exerted by the oxygen gas and that of the water vapor at that given temperature.

At 20 C, the vapor pressure of water as given in the question is 2.33 kPa.

Using the above formula,

Ptotal = Poxygen + P water

Substituting for Poxygen, we have;

Poxygen = Ptotal - P water vapor

P oxygen = 95 .00 kPa - 2.33 kPa

P oxygen = 92.67 kPa.

The partial pressure of oxygen gas in the container is hence, 92.67kPa.

3 0
3 years ago
If a chemical appears on the periodic table, it is a(n), ____________
Andre45 [30]
0 plus 5 negative and accumulated
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3 years ago
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