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Troyanec [42]
3 years ago
11

Electromagnetic Waves can propagate (move through);

Chemistry
1 answer:
wariber [46]3 years ago
5 0

Answer:

Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

Explanation:

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2.41 x 1024 formula units of NaCl
IgorLugansk [536]
So the number of moles = 0.06 moles of 4X12-2 moles.
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3 years ago
Scientists believe that the Earth's orbit gradually changes from being elliptical to being nearly circular and then back to elli
IRISSAK [1]

Answer:

  solar energy received at the Earth's closest and farthest locations from the sun

Explanation:

The largest effect on climate is due to changes in received solar radiation. Changes in gravity or magnetic field have not been shown to have any significant effect on climate. Day/night differences are due to the tilt of the earth's axis, and have nothing to do with earth's orbit eccentricity.

The more circular the Earth's orbit, the less the difference in solar energy received at the Earth's closest and farthest locations from the sun.

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3 years ago
. Name something chemistry related you are interested in or interested in learning about.
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Answer: How The World Works

Explanation: Our world is made out of atoms, molecules and ions. Their behavior determines the properties of the substances we encounter in our daily lives: their structure, color, smell, and the way they interact with each other.

5 0
3 years ago
Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). If you mix butane and oxygen in the correct
Fittoniya [83]

Answer:

118.776 mmHg

Explanation:

The equation of the reaction is;

C4H10(g) + 13/2 O2(g) ------> 4CO2(g) + 5H20(g)

Now the mole ratio  according to the balanced reaction equation is;

1 : 6.5 : 4 : 5

Hence, the total number of moles present = 1 + 6.5 + 4 + 5 = 16.5 moles

Mole fraction of water vapour = 5/16.5 = 0.303

We also know that;

Partial pressure= mole fraction * total pressure

Partial pressure of H20(g) = 0.303 *  392 mmHg = 118.776 mmHg

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3 years ago
Why should scientists preform experiments
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Answer:

To test the accuracy of a hypothesis or any findings that have already been made  

Explanation:

by performing experiments scientists get to test out any questions they have

4 0
3 years ago
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