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Alina [70]
3 years ago
13

The energy levels of an atom are occupied by A.electrons B.protons C.neutrons D.ions

Chemistry
1 answer:
Vedmedyk [2.9K]3 years ago
5 0

Answer:

A: electrons

Explanation:

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Isomers of hydrocarbons have the same _______formula but different ____formula.
Misha Larkins [42]

Answer:

Isomers of hydrocarbons have the <u>molecular</u> formula but <u>structural</u> formula.

Explanation:

Molecules with the same structural formula, but different molecular geometries (spatial arrangement) are called isomers. These differences in the arrangement of the various atoms confer certain differences in chemical properties to the resulting hydrocarbons, even though their chemical composition is the same. There are two types of isomers:

Structural isomers: Here, each atom are connected or bonded in different ways, hence structural isomers may contain different functional groups or pattern of bonding. structural isomers are further divided into: chain, position, and functional group isomers.

Stereoisomers: Here, the connections of the atoms are the same, but the difference is in their orientation in space

6 0
3 years ago
The pka of hf is 3.2 determine the pkb of hf?
Julli [10]

Well, first we must remember that

pK_{a}+pK_{b}=14

This is because

K_{a}*K_{b}=10^{-14}

-log(K_{a}*K_{b})=-log(10^{-14})\\-logK_{a}+-logK_{b}=-log(10^{-14})\\pK_{a}+pK_{b}=14

So then

pK_{b}=14-pK_{a}=14-3.2=1.8

7 0
4 years ago
Read 2 more answers
How many grams is 2.40 x 1023 molecules of N,O,? (5 pts)<br> PLS HELP ASAP
Tasya [4]

Answer:

30.26 grams of N₂O₃

Explanation:

Divide by Avogadro's number. This leaves you with the number of moles. Then, multiply by the molar mass of N₂O₃

6 0
3 years ago
When a potassium atom forms an ion, it loses one electron. What is the electrical charge of the potassium ion?
Anni [7]
C. -1...hope that's right :)...
6 0
4 years ago
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Two scientists are cutting samples of leaves for analysis. One scientist always clips a sample from the base of the leaf near th
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The answer would be A.Procedure error
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