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Irina18 [472]
3 years ago
8

Rebekah has a table that has a mass of 18.6 kg. What is the weight of the table?

Chemistry
1 answer:
ankoles [38]3 years ago
8 0

The answer would be C.

Hope this helps :)

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Where do flowers come from? They are made through the process of sexual reproduction. Flowers may look simple, but there are act
Licemer1 [7]

Answer:

They're sexual reproduction

Explanation:

A flower throws seed at another flower

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3 years ago
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Where does washing powder fall into in the ph scale ?
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Explain why electrons orbit around the nucleus
Sonja [21]
In quantum mechanics, an atomic orbital is a mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom. This function can be used to calculate the probability of finding any electron of an atom in any specific region around the atom's nucleus.
6 0
3 years ago
Mercury (Hg) is present in trace amounts in coal, ranging from 50.0 to 200.0 ppb. A typical power plant burns 1.49 million tons
faust18 [17]

Answer and Explanation:

To calculate this, simply use an equality of proportions:

50 particles  :  1 billion particles = <em>x</em> tons  :  1.49 million tons

The value of <em>x</em> can be solved for by multiplying the ratio on the left by the value 1.49 million / 1 billion:

So, <em>x</em> = (50)(0.00149) tons = 0.0745 tons

Then, do the same thing for the larger concentration:

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5 0
2 years ago
Which best explains why the trend in noble gas boiling points increases down the group?A) increasing dispersion interactions B)
zhenek [66]

Answer:

A) increasing dispersion interactions

Explanation:

Polarizability allows gases containing atoms or nonpolar molecules (for example,  to condense. In these gases, the most important kind of interaction produces <em>dispersion forces</em>, <em>attractive forces that arise as a result of temporary dipoles induced in atoms or molecules.</em>

<em>Dispersion forces</em>, which are also called <em>London forces</em>, usually <u>increase with molar mass because molecules with larger molar mass tend to have more electrons</u>, and <u>dispersion forces increase in strength with the number of electrons</u>. Furthermore, larger molar mass often means a bigger atom whose electron distribution is more easily disturbed because the outer electrons are less tightly held by the nuclei.

Because the noble gases are all nonpolar molecules, <u>the only attractive intermolecular  forces present are the dispersion forces</u>.

8 0
3 years ago
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