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zhenek [66]
3 years ago
8

Sodium is a dull-coloured metal. It is very reactive and must be stored in oil for safety.

Chemistry
1 answer:
Bond [772]3 years ago
4 0

Answer:

Hi there!

It is difficult to remove chlorine out of sodium chloride because in order to separate them you must put that energy into the salt.

Chlorine gas is toxic, and extremely irritating to the eyes and mucous membranes.

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How does the law of conservation of mass apply this reaction mg + HCl -- H2 + mgcl2
rjkz [21]

The correct answer is D hydrogen and chlorine need to be balanced there's an equal amount of magnesium on each side. I just took the test and got the correct answer.

7 0
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What type of ion do elements from each of the following groups form ,<br> group1 <br> group 7.
Artemon [7]

Answer:

group 1 - cations charge +1

group 7 - anions  charge -1

Explanation:

Group 1 has one valence electron and will lose one electron to complete the octet.

Group 7 has 7 valence electrons and will accept an electron to complete the octet.

7 0
3 years ago
Needing help please help me
Elenna [48]

Answer:

18. E. 0%

19. D. 25%

Explanation:

Question 18:

Let's use "B" to represent the dominant allele of "light blue skin", and

"b" for recessive "light green skin".

Squidward => BB - light blue skin

Squidward's bride => bb - light green skin

When they cross, they will have the following offsprings:

(BB) × (bb) - Parent

(Bb) (Bb) (Bb) (Bb) - Offspring

All the offspring would be light green skin. The dominant allele of light green skin will express itself over the recessive allele.

Therefore, the chances of Squidward and his bride having light green skin is 0%

Question 19:

Squidward's son => Bb - light blue skin

Squidward's son's bride => Bb - light blue skin

(Bb) × (Bb) - parent

(BB) (Bb) (Bb) (bb) - offspring

They will have the following offspring:

BB and Bb - light blue - 75%

bb - light green - 25%

Chance of having offspring with light green skin is 25%

8 0
3 years ago
Which of the following correctly matches the component a respiration with its job description
sp2606 [1]

hi there! i would love to help you but there are no choices or a photo attached!

3 0
3 years ago
An atom of chlorine has several valence electrons in its
RUDIKE [14]
7 valence electrons in an atom

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