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svetlana [45]
3 years ago
8

A neutral atom posses an atomic number of 13 and an atomic mass of 27 three electrons are lost. From which regio of an atom arr

they lost
Chemistry
1 answer:
AleksAgata [21]3 years ago
8 0
Theyre lost from the atomic number
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scoray [572]
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3 years ago
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Which of the following statement is FALSE? a. Lowering the free energy of the transition state can increase a reaction rate. b.
ryzh [129]

Answer: Option (c) is the correct answer.

Explanation:

Activation energy or free energy of a transition state is defined as the  minimum amount of energy required to by reactant molecules to undergo a chemical reaction.

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Also, increase in temperature will help in increasing the rate of reaction.

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4 years ago
How many significant figures does 0.005505 have
Viktor [21]

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8 0
3 years ago
Us<br> What is the percent of O in<br> Cr2O3?<br> (Cr = 52.00 amu, O = 16.00 amu)<br> [? ]%
Gekata [30.6K]

The percent of O in  Cr₂O₃ : 31.58%

<h3>Further explanation</h3>

Given

Cr = 52.00 amu, O = 16.00 amu

Required

The percent of O

Solution

MW Cr₂O₃ = 2 x Ar Cr + 3 x Ar O

MW Cr₂O₃ = 2.52+3.16

MW Cr₂O₃ =152 amu

\tt \%O=\dfrac{3.Ar~O}{MW~Cr_2O_3}\times 100\%\\\\\%O=\dfrac{3.16}{152}\times 100\%\\\\\%O=31.58\%

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cupoosta [38]
The answer is glycolsis, I'm pretty sure.
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3 years ago
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