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Free_Kalibri [48]
3 years ago
6

It was a cold December night many, many, years 1___ ___ when young 2___ ___ ___ ___ ___ decided to have some 3___ ___ ___ with h

is friends. He found a 4___ ___ ___ and brought it home.
Chemistry
1 answer:
Veseljchak [2.6K]3 years ago
7 0

Answer: 1) ago

Explanation:

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Which describes the activity of an arson investigator? A) identifying the clothing found in a crime scene B) identifying the cau
Paul [167]
The answer would be A be cause it is the most reasonable answer
3 0
4 years ago
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When might a large volume of material have little mass?
il63 [147K]
For a solid I would say something like aerogel would have a large volume but very little mass.

Let me know if this helped or not.
5 0
4 years ago
What is the element that lies in group no 29?​
Amiraneli [1.4K]
Ahh there isn’t a group 29 on the periodic table, but do you mean which element had the atomic number 29 because that would be Copper (Cu).

Hope this helps :)
4 0
3 years ago
Calculate the mass percent (m/m) of a solution prepared by dissolving 45.09 g of NaCl in 174.9 g of H2O.
inysia [295]

Answer:

20.3 %  NaCl

Explanation:

Given data:

Mass of solute = 45.09 g

Mass of solvent = 174.9 g

Mass percent of solution = ?

Solution:

Mass of solution = 45.09 g + 174.9 g

Mass of solution = 220 g

The solute in 220 g is 45.09 g

220 g = 2.22 × 45.09

In 100 g solution amount of solute:

45.09 g/2.22 = 20.3 g

Thus m/m% = 20.3 %  NaCl

5 0
4 years ago
Give the chemical symbol of an element in the third period (row) of the periodic table with four 3p electrons.
Ann [662]

<u>Answer: </u>The chemical symbol of the element is Sulfur.

<u>Explanation:</u>

The element which is present in third period of the periodic table having four 3p electrons is Sulfur. Sulfur is the 16th element of the periodic table which has 6 valance electrons.

The electronic configuration of this element is:  [Ne]3s^23p^4

This element is considered as a non-metal because it will accept electrons in order to attain stable electronic configuration.

Hence, the chemical symbol of the element is Sulfur.

7 0
3 years ago
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