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Ainat [17]
3 years ago
10

Define atomic number ​

Chemistry
1 answer:
tester [92]3 years ago
8 0

Answer:

the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.

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If the Earth rotated in the opposite direction, what would most likely occur? Select one
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Answer:

,jgkgchgchgcchgchg

Explanation:

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Calculate the number of C, H, and O atoms in 1.75 g of squaric acid
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As far as I remember, the needed formula for squaric acid is C4H2O4.
According to this one mole should be  114.06 g., which means we have <span>0.015mol of this acid.
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32.5 g to fluid ounces
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An atom of alluminum has an atomic number of 13 and a mass of a mass number lf 27. How many neutrons does it have?
Alex777 [14]

Answer:

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Explanation:

8 0
3 years ago
Read 2 more answers
A possible mechanism for the overall reaction Br2 (g) + 2NO (g) → 2NOBr (g) is NO (g) + Br2 (g) rightwards arrow with k space 1
omeli [17]

Answer : The rate law for formation of NOBr based on this mechanism is, \frac{k_1\times k_2}{k_1^-}[Br_2][NO]^2

Explanation :

The overall reaction is:

Br_2(g)+2NO(g)\rightleftharpoons 2NOBr(g)

Rate law = k[Br_2][NO]^2

The first step of the overall reaction is:

NO(g)+Br_2(g)\overset{k_1}{\rightarrow} NOBr_2(g)

NO(g)+Br_2(g)\overset{k_1^-}{\leftarrow} NOBr_2(g)

Rate law 1 = k_1[Br_2][NO]

Rate law 2 = k_1^-[NOBr_2]

The second step of the overall reaction is:

NOBr_2(g)+NO(g)\overset{k_2}{\rightarrow} 2NOBr

Rate law 3 = k_2[NOBr_2][NO]

Now rate law of overall reaction can be obtained as follows.

We are multiplying rate law 1 and rate law 3 and dividing by rate law 2, we get:

Rate law = \frac{[k_1[Br_2][NO]]\times [k_2[NOBr_2][NO]]}{[k_1^-[NOBr_2]]}

Rate law = \frac{k_1\times k_2}{k_1^-}[Br_2][NO]^2

Rate law = k[Br_2][NO]^2

The rate law for formation of NOBr based on this mechanism is, \frac{k_1\times k_2}{k_1^-}[Br_2][NO]^2

4 0
3 years ago
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