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tatuchka [14]
2 years ago
15

What elements have the same number of energy levels as Calcium?

Chemistry
1 answer:
Sliva [168]2 years ago
4 0

Answer:

Element Element Number Number of Electrons in each Level

Chlorine 17 7

Argon 18 8

Potassium 19 8

Calcium

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3 years ago
Define duplet and octet??​
Bogdan [553]
Answer:
duplet-A set of two things or people
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5 0
3 years ago
If 507 g FeCl2 were used up in the reaction FeCl2 + 2NaOH Fe(OH)2(s) + 2NaCl, how many grams of NaCl would be made?
Ket [755]
Number of moles of FeCl2 used = mass/ molar mass 
Number of moles = 507/126.751 = 4.
If one mole of Fe reacts with two moles of sodium 
Then 4 moles of Fe produces 8 moles of sodium.
Number of moles of sodium = mass/molar mass
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6 0
3 years ago
An object has a mass of 6.8 g and volume of 34 mL. What is the density of the object?​
jenyasd209 [6]

Answer:

<h2>Density = 0.2 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

<h3>Density =  \frac{mass}{volume}</h3>

From the question the points are

mass = 6.8 g

volume = 34 mL

Substitute the values into the above formula and solve

That's

<h3>Density =  \frac{6.8}{34}</h3>

We have the final answer as

<h3>Density = 0.2 g/mL</h3>

Hope this helps you

7 0
2 years ago
What is deforestation?
snow_lady [41]

Answer:

D.

Explanation:        

The action of clearing a wide area of trees.

8 0
3 years ago
Read 2 more answers
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