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notsponge [240]
4 years ago
14

Element X has an electron configuration that ends with 5p6. Which of the following describes this atom correctly?

Chemistry
1 answer:
pishuonlain [190]4 years ago
7 0
The answer is d noble gas because the very last column on the periodic table is all the noble gases
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Can someone please explain what to do it’s late at night and I need sleep but I forgot I had this homework please help me with a
Rus_ich [418]

Answer:

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Mechanical waves travel fastest through<br> A -Solid<br> B -Liquid<br> C -Gas<br> D -Vacuum
GalinKa [24]

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Alkenes: draw the product of 1-chloro-2-ethylcyclohexene with hydrogen gas and a platinum catalyst
atroni [7]
Reacting 1-chloro-2-ethylcyclohexene with hydrogen gas using a platinum catalyst would give a product of 1-chloro-2-ethylcyclohexane. 

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3 years ago
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scoundrel [369]

Answer:  

1.  DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.

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5 0
3 years ago
What is the percent composition of Ca(OH)2? 37.7% Ca, 53.0% O, and 10.3% H 45.5% Ca, 38.2% O, and 16.3% H 54.0% Ca, 43.0% O, and
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The molar mass of Calcium hydroxide is 74 g/mol

To find the percent composition we have to find the number of atoms of each element in the formula .

So there’s

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Oxygen - 2

Hydrogen - 2

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Ca - 40 g/mol x 1 = 40

O - 16 g/mol x 2 = 32

H - 1 g/mol x 2 = 2

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From the options given correct answer is 3rd option

54.0% Ca , 43.0% O and 2.7 % H

6 0
4 years ago
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