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svlad2 [7]
3 years ago
6

Please help brainiest is award.

Chemistry
1 answer:
sineoko [7]3 years ago
3 0

Answer:

7688

Explanation:

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What is the electron arrangement for aluminum?
AlladinOne [14]
2,8,3 because Aluminium has the Atomic Number 13
3 0
3 years ago
Which of the following chemical formulas show three molecules of a compound that has one
mr_godi [17]

The chemical formula : 3HgBr₂(Mercury(II) bromide)

<h3>Further explanation</h3>

Given

The chemical formulas of Mercury and Bromine

Required

The appropriate chemical formula

Solution

A molecular formula is a formula that shows the number of atomic elements that make up a compound.  

The number of molecules is determined by the coefficient in front of the compound

the number of atoms is determined by the subscript after the atom and the coefficient

Three molecules⇒ coefficient = 3

one atom of Mercury ⇒Hg

two atoms of Bromine ⇒ Br₂

The chemical formula : 3HgBr₂

6 0
2 years ago
In 0.4 mole of H2S, how many atoms of H are there? ​
Debora [2.8K]

Answer:

8

Explain

H: Ignoring the coefficient, we know there's 5+3=8 atoms

5 0
2 years ago
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elena55 [62]

Answer:

is this multiple choice just wondering

4 0
3 years ago
If some red cabbage indicator is added to a solution with an unknown ph and the color of the indicator turn to blue what can be
atroni [7]

Answer:

Neutral solution, pH of 7.

Explanation:

Red cabbage is a natural indicator which gives red color when an acid is added, green color when a base is added and <u>it gives blue color when a neutral solution is added. </u>

<u>Given that when some red cabbage indicator is added to a solution , it turns blue which means that the solution is a neutral solution. Neutral solution have a pH of 7.</u>

8 0
3 years ago
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