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Shalnov [3]
2 years ago
12

how was it possible that Mendeleev was able to predict the properties of elements that no one knew about

Chemistry
1 answer:
andrew-mc [135]2 years ago
7 0
<span>He used the patterns he found in properties of known elements to predict the properties of unknown elements.</span>
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2 years ago
Why a common measuring system is important
Gekata [30.6K]
So scientist around the world can share there info without having to convert and doing extra work.
6 0
3 years ago
Organic acids and bases in their ___________ form are soluble in organic solvents, but the corresponding _________ are more wate
gizmo_the_mogwai [7]

Answer:

a. neutral

b. salts

c. salt

Explanation:

Organic salts are a dense number of ionic compounds with innumerable characteristics. They are previously derived from an organic compound, which has undergone a transformation that allows it to be a carrier of a charge, and that in addition, its chemical identity depends on the associated ion.

Organic salts are usually stronger acids or bases than inorganic salts. This is because, for example, in the amine salts, it has a positive charge due to its bond with an additional hydrogen: A + -H. Then, in contact with a base, donate the proton to be a neutral compound again

RA + H + B => RA + HB

H belongs to A, but it is written as it is involved in the neutralization reaction.

On the other hand, RA + can be a large molecule, unable to form solids with a crystalline network stable enough with the hydroxyl anion or oxyhydrile OH–.

When this is so, salt RA + OH– behaves as a strong base; even as basic as NaOH or KOH

3 0
3 years ago
A teacher attaches two slinky springs to a fixed support. The springs are moved, as shown in the image. Wave A wave B What prope
Misha Larkins [42]

Answer:

a changes more because it going higher

Explanation:

6 0
2 years ago
Read 2 more answers
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Setler [38]

Answer:

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Explanation:

The direction of heat flow is from a body at higher temperature to one with a lower temperature.

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  • When both bodies reaches the same temperature, thermal equilibrium is established.
7 0
3 years ago
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