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Serhud [2]
3 years ago
12

Why is an elements atomic mass not listed as a whole number in the periodic table

Chemistry
2 answers:
FinnZ [79.3K]3 years ago
7 0

Answer:

They aren't listed as a whole number, because an atom's mass is not always a whole number. The mass differs between types of atoms as well.

Grace [21]3 years ago
3 0

Answer:

This is because atoms ionize, isotopes exist, and the fact that their are impurities.

Explanation:

Each atomic mass could not be calculated accurately if it was a whole number.

- Hope this helped! Please let me know if you need further explanation.

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how many liters of a 60% antifreeze solution must be added to 8L of a 10% antifreeze solution to produce a 20% antifreeze soluti
Tasya [4]

Answer: 2Liters

Explanation:

The expression used will be :

M_1V_1+M_2V_2=M_3V_3

where,

M_1 = concentration of first antifreeze= 60%

M_2 = concentration of second  antifreeze= 10%

V_1 = volume of first antifreeze = x L

V_2 = volume of second antifreeze = 8 L

M_3 = concentration of final antifreeze solution= 20%

V_3 = volume of final antifreeze = (x+8) L

Now put all the given values in the above law, we get the volume of  antifreeze added

60\times x+10\times 8=20\times (x+8)

x=2L

Therefore, the volume of 60% antifreeze solution that must be added is 2L

5 0
3 years ago
Why stone is not a combustable and insolouble in water​
zaharov [31]

Answer:

Stone does not have organic matter in it to burn in presence of air. Hence, it is a non combustible.

Rocks are quite bundled up together. Hence, they are very difficult to get mixed together.

4 0
3 years ago
Read 2 more answers
Why can more sugar be dissolved in hot water than cold water (more solute be dissolved in hot solvent then cold solvent)
lesantik [10]
Sugar dissolves faster in hot water than it does in cold water because hot water has more energy than cold water. when water is heated, the molecules gain energy and because of that, move faster. as they move faster, they come in contact with the sugar more often, causing it to dissolve faster.
4 0
2 years ago
The reaction 2KClO3(s) --> 2KCl(s) + 3O2(g) is a(n)
julia-pushkina [17]

Answer:

decomposition reaction.

Explanation:

It is a decomposition reaction as potassium chlorate compound breaks to form potassium chloride and oxygen. This reaction requires heat as source of energy to break down the compound so it is endothermic in nature.

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3 years ago
What type of bond allows sugars to polymerize?
valina [46]
Polysaccharides, that allow sugar to polymerize

3 0
3 years ago
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