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I am Lyosha [343]
3 years ago
7

Which of the following compounds is always part of an aqueous solution?

Chemistry
2 answers:
jolli1 [7]3 years ago
5 0
A.water.
An aqueous solution is a solution in water.
Hope this helped :)
JulijaS [17]3 years ago
3 0

Answer:

The correct option is a

Explanation:

In chemistry, aqueous is used to refer to a solution that contains water in it. This is primarily what differentiates a liquid and an aqueous solution. A liquid substance/solution has its particles moving freely (but not as free as gaseous particles). Examples are ethanol, methanol, water, oil, kerosene and hexane. However, an aqueous solution contains water (usually as a solvent). Example of this is an aqueous salt solution - where salt is dissolved in water. If the salt is dissolved in something else (for example absolute ethanol), this cannot be referred to as aqueous.

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Which noble gas is closest to sulfur on the periodic table
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Phosphate because it's the closest to sulfur on the periodic 2
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What do they mean by “zigzag line” ?
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5 0
2 years ago
Which element has the greatest density at STP?
son4ous [18]

Answer: Option (4) is the correct answer.

Explanation:

It is known that density is mass divided by volume.

Mathematically,       Density = \frac{mass}{volume}

Since, density is directly proportional to mass. So, more is the mass of an element more will be its density.

Mass of magnesium is 24.305 g/mol.

Mass of barium is 137.327 g/mol.

Mass of beryllium is 9.012 g/mol

Mass of radium is  226 g/mol.

Hence, radium has more mass therefore it will have the greatest density at STP.

8 0
3 years ago
Which statement describes how heat is transferred by convection?
fredd [130]

Answer:

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Explanation:

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7 0
3 years ago
Give the electron configuration for F.
postnew [5]

Answer:

1s² 2s² 2p⁵

Explanation:

The elements of group 17 are called halogens. These are six elements Fluorine, Chlorine, Bromine, Iodine, Astatine. Halogens are very reactive these elements can not be found free in nature. Their chemical properties are resemble greatly with each other. As we move down the group in periodic table size of halogens increases that's way fluorine is smaller in size as compared to other halogens elements. Their boiling points also increases down the group which changes their physical states. i.e fluorine is gas while iodine is solid.

Properties of fluorine:

1. it is yellow in color.

2. it is flammable gas.

3. it is highly corrosive.

4. fluorine has pungent smell.

5. its reactions with all other elements are very vigorous except neon, oxygen, krypton and helium.  

6. Its atomic number of 9.

7. its atomic mass is 18.99 amu.

Electronic configuration:

₉F = 1s² 2s² 2p⁵

4 0
3 years ago
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