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I am Lyosha [343]
3 years ago
14

During science class, while studying mixtures, you mix together table salt and sand. Your teacher challenges you to separate the

salt from the sand. What property could you use and how would you use it?
Chemistry
1 answer:
olga2289 [7]3 years ago
7 0
The property to be used is sieving. you get a bowl and a sieve when you pour the sand and salt,the salt being the small particle sieve to the bowl while the sand remain on the sieve as residue
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How many valence electrons does aresenic ave.
Inessa [10]
5 valence electrons.
3 0
2 years ago
How many grams are in 4.0 moles of lithium
Fittoniya [83]

Answer:

The correct answer is 27.764 grams.

Explanation:

A standard scientific unit for determining the large quantities of very small entities like molecules, atoms, or other specific particles is termed as a mole. The molecular weight of lithium is 6.941 grams per mole. Thus, one mole of lithium has 6.941 grams.

If, 1 mole of Li has 6.941 grams, then 4 moles of Lithium will have,

= Molecular mass of lithium/1 mole * 4 mole

= 6.941 gram per mole/1 mole * 4 moles.

= 27.764 grams

3 0
3 years ago
What do weather and climate have in common?
Anni [7]

Answer:

Both apply to a certain region

Choice C is correct

Explanation:

Weather refers to the atmospheric conditions of a given place over a short period of time, like a day.

On the other hand, Climate refers to the average climatic conditions of a particular region measured over a long period of time.

Both weather and climate apply to a certain region.

5 0
2 years ago
Number of electrons absorbed by the main energy level (n = 4):
VARVARA [1.3K]

Answer:

C

Explanation:

Because 2 x n square gives the total energy level been absorbed = 2 x16

=32

5 0
3 years ago
Which word or group of words is represented by the word "period" in the term Periodic Table?
leonid [27]
The correct answer is C : energy level.

As you can see in the image of the periodic table presented below, periods are the horizontal columns of the periodic table.
Elements belonging to the same period have the same electron shell, the same number of orbits filled with electrons.
Elements of the same period have similar chemical and physical characteristics 

6 0
3 years ago
Read 2 more answers
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