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Elodia [21]
3 years ago
7

Protons and neutrons are composed of what? A electrons B.quarks C.ions D.molecules

Chemistry
2 answers:
leonid [27]3 years ago
6 0
B. Quarks is the answer.
drek231 [11]3 years ago
3 0
Protons and neutrons are made up of quarks. 

B.
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Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12
LuckyWell [14K]
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3 years ago
Which trends appear as the elements in Period 3 are considered from left to right?
andreev551 [17]

Answer:

Metallic character decreases, and electronegativity increases.

Explanation:

Hello!

In this case, according to the organization of the periodic table, we can see that from left to right, the electronegativity increases as nonmetals are able to attract electrons more easily than metals.

Moreover, in contrast to the previous periodic trend, the metallic character decreases from left to right because the elements tend to decrease the capacity to lose electrons and consequently start attracting them.

Thus, the answer would be: "Metallic character decreases, and electronegativity increases".

Best regards!

8 0
3 years ago
What are 2 chemical changes of water?​
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When a particle is moving fast it has a lot of kinetic energy in it. ?
Sever21 [200]

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Explanation:

3 0
3 years ago
The ka of acetic acid ch3co2h is 1.8 x10-5. what is the ph
AysviL [449]
You must know the concentration of the acetic acid. Suppose the concentration is 0.1 M. The solution is as follows:

            CH₃COOH → CH₃COO⁻ + H⁺
 I                  0.1               0              0
C                 -x                +x            +x
E              0.1 - x             x               x

Ka = (x)(x)/(0.1 - x)
1.8×10⁻⁵ = x²/(0.1 - x)
Solving for x,
x = 1.333×10⁻³ = H⁺

pH = -log[H⁺] = -log(1.333×10⁻³)
pH = 2.88

6 0
3 years ago
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