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Xelga [282]
4 years ago
9

What must happen for a liquid water to become water vapor ?

Chemistry
1 answer:
kirza4 [7]4 years ago
4 0

Answer:

It must be heaten to 100º.

Explanation:

If you heat water to 100º, it boils, so it evaporates and becomes water vapor.

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1. Graph a wave with an
kiruha [24]

Answer:

y = 5cos(\frac{2\pi }{6} x)

Explanation:

You can put that equation into a program like desmos on your browser and take a screenshot or use windows snippet tool.

Equation of a Wave: y = Acos(((2*pi)/B)x)

or

y = Acos(\frac{2\pi }{B} x)

A = Amplitude

B= Wavelength

5 0
3 years ago
Which of the following elements listed is the least metallic
Dominik [7]
Where's the list? It depends on which one it is. It could be Chlorine, silicon, or anything on the non metals side of the periodic table if you don't list it. 
5 0
3 years ago
What material could be used for a cup to keep coffee hot
nata0808 [166]

Answer:

Your answer could be: ceramic or stainless steel.

Explanation:

Glass, ceramic, and stainless steel are all good insulating materials for keeping coffee hot. Although, if you don't want to possibly burn yourself, don't use glass.

Have a great day/night! ^^

4 0
3 years ago
Recall all the models you described in task 1. Think about the results each model would predict for Thomson’s experiment. Which
svetlana [45]

<u>Answer:</u>

The very early discovery of particles that were subatomic was proposed by Dalton, which was then negated by the postulates suggested by Thomson that proved Dalton's theory.

<u>Explanation:</u>

The structural arrangement of atoms were approved by Thomson and Rutherford using the technique of air condition in x-ray showing the arrangement of protons and neutrons within Centre.

A nucleus and the negative particles that we called electrons moving around which were also shown to be much lighter than the particles present in the centre.

7 0
3 years ago
Read 2 more answers
10g of an oxide of copper contains 8.882g of copper. what is empirical formula of the copper oxide
-BARSIC- [3]

Answer:

Mass of copper oxide: 10g

Mass of copper: 8.882g

Mass of oxygen: 1.118g

                                                                <u> Cu</u>               <u>O</u>

                                                              8.882           1.118

Divide by A_{r}                                   8.882÷63.5       1.118÷16

                                                               0.14             0.07

Divide by the lowest number          0.14/0.07       0.07/0.07

                                                                  2                  1

Check the ratio now, Cu has 2 atoms and O has 1 atom .

The formula is Cu_{2} O

4 0
3 years ago
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