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frosja888 [35]
3 years ago
15

Which pure substance can be classified as an element?

Chemistry
2 answers:
kkurt [141]3 years ago
6 0

Answer:

H2

Explanation:

Got it right on edg

taurus [48]3 years ago
5 0
Watər H20 because it is formed by the process of hydrogen and oxygen bonding
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The density of water is 1.0 grams per milliliter. What can you conclude from this simulation about whether an object will
aliina [53]

The density of water is 1.0 grams per milliliter then it will be sink in water

Density is a word we use to describe how much space an object or substance takes up in the volume and in relation to the amount of matter in that object or substance its mass) and another way to put it is that density is the amount of mass per unit of volume

Here given density is 1.0 grams per milliliter and it will be sink in water because the density of water in 1.0 g/ml and this object is more dense than water and the density of an object determines whether it will float or sink in another substance and an object will float if it is less dense than the liquid it is placed in and an object will sink if it is more dense than the liquid it is placed

Know more about density

brainly.com/question/18366165

#SPJ1

4 0
1 year ago
Which statements are false?
Tasya [4]

Answer:

Answer A is wrong

Explanation:

because the temperature increases as soon as the temperature increases

Hope it helps you

4 0
3 years ago
You may expect
Juliette [100K]
I believe it’s Hydrogen
5 0
4 years ago
Explain the effects that different frequencies of electromagnetic radiation have when absorbed by matter.
Neko [114]
In order to answer this question we might first want to think about what is electromagnetic radiation. In essence it’s light, just some of the wavelengths are too long or too short for us to see.

We can think about it as two oscillating sinusoidal (goes up and down) waves, one is electric, the other is magnetic.

Because we’re dealing in waves, that means we can calculate their frequency, wavelength, amplitude (brightness) and period.

To calculate it we can use E=hc/lambda
Where E = jewels of energy
h = Planck’s constant
c = speed of light
Lambda = wavelength

It doesn’t really matter for this question what those things mean, just note that it takes more energy to have a shorter wavelength, or less energy to have a longer wavelength.

So now we can answer the question. Light of a longer wavelength has less energy than that of a shorter wavelength. So, when long wavelengths are absorbed by matter (atoms) they will give those atoms less energy. So, either it will pass through the object entirely or it will make the atoms vibrate a little bit more than they already are and we call that thermal energy, or heat.

If high energy wavelengths are passing through matter then they will be giving those atoms a lot of energy, sometimes even ionizing the atoms.
Which, if you’re a living thing can be very bad for your cells.

I hope that helps.
8 0
4 years ago
What is the result of humans releasing carbon dioxide back into the atmosphere?
Nookie1986 [14]

Answer:

Cellular Respiration I believe, hope this helped!

7 0
3 years ago
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