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PolarNik [594]
3 years ago
9

Which of the following are examples of compounds? CO2 H2O С Au

Chemistry
2 answers:
Artyom0805 [142]3 years ago
7 0
CO2 and H2O are compounds hope this helped :)
katrin2010 [14]3 years ago
4 0

Answer: C02, & H20, are both examples of compounds. Hope this helps!

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Plz help me woth these 2 questions they r killing me!!!!!
Bogdan [553]
If you leave the plant in the closet it will die due to the lack of sunlight and water it needs.

Yes, you could begin to swear because you are used to hearing those words so in your mind it will get implanted and it will be just a natural response.

Happy studying ^_^
3 0
3 years ago
Four springs are stretched to the same distance from the equilibrium position. The spring constants are listed in the table. A 2
svp [43]

Answer:

The correct option is;

X, W, Y, Z

Explanation:

The parameters given are;

Spring (S),         Spring Constant (N/m)

      W,                   24

      X,                    35

      Y,                    22

      Z,                    15

The equation for elastic potential energy, E_e, is E_e = 0.5 \times k \times x^2

The above equation can also be written as E_e =\dfrac{1}{2}  \times k \times x^2

Where:

k = The spring constant in (N/m)

x = The spring extension

Therefore, since the elastic potential energy, E_e, of the spring is directly proportional to the spring constant, k, we have the springs with higher spring constant will have higher elastic potential energy, E_e, therefore the correct order is as follows;

X > W > Y > Z

9 0
3 years ago
Which law suggests that at a constant pressure, the volume of gas is directly proportional to its temperature?
igor_vitrenko [27]

Answer:

The law that suggests that at a constant pressure and the volume of gas directly proportional to its temperature is the Boyle's law.

Explanation:

4 0
3 years ago
You heat a piece of iron from 200 to 400 K. What happens to the atoms’ energy of random motion?
Vilka [71]
Smash because. X x c. Cc d.
5 0
3 years ago
What is the net charge of a nitrogen atom with 8 electrons
DaniilM [7]

Answer:

– 1

Explanation:

From the question given above, we obtained the following:

Electron = 8

Net charge of nitrogen =.?

Nitrogen has atomic number of 7. This also means that nitrogen has 7 proton because atomic number of an element is the equal to number of protons in the atom of the element.

Thus, we can obtain the net charge of nitrogen with 8 electrons by calculating the difference between the protons and electrons of the nitrogen atom. This can be obtained as follow:

Proton = 7

Electron = 8

Net charge = Proton – Electron

Net charge = 7 – 8

Net charge = – 1

Therefore, the net charge of the nitrogen atom with 8 electrons is – 1

7 0
3 years ago
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