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mash [69]
3 years ago
5

Which is a nonmetal ? 1. Sodium (Na) 2.lithium(Li) 3. Calcium (ca) 4. Carbon(c)

Chemistry
2 answers:
Savatey [412]3 years ago
3 0

Answer: Calcium (ca)

Explanation:

Mkey [24]3 years ago
3 0
Carbon (C) numbed 4
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Transition elements are elements which have partially filled d-orbitals and form at least one or more stable ions.

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3 years ago
How would the world be different if people were not aware of radioactive decay
allsm [11]

Answer:

everyone would die

Explanation:

if we did not know about it we would not do anything about it

6 0
3 years ago
A student determines the molar mass of acetone, CH3COCH3, by the method used in this experiment. She found that the equilibrium
Alexandra [31]

Answer:

(a). 4°C, (b). 2.4M, (c). 11.1 g, (d). 89.01 g, (e). 139.2 g and (f). 58 g/mol.

Explanation:

Without mincing words let's dive straight into the solution to the question.

(a). The freezing point depression can be Determine by subtracting the value of the initial temperature from the final temperature. Therefore;

The freezing point depression = [ 1 - (-3)]° C = 4°C.

(b). The molality can be Determine by using the formula below;

Molality = the number of moles found in the solute/ solvent's weight(kg).

Molality = ( 11.1 / 58) × (1000)/ ( 90.4 - 11.1) = 2.4 M.

(c). The mass of acetone that was in the decanted solution = 11.1 g.

(d). The mass of water that was in the decanted solution = 89.01 g.

(e). 2.4 = x/ 58 × (1000/1000).

x = 2.4 × 58 = 139.2 g.

(f). The molar mass of acetone = (12) + (1 × 3) + 12 + 16 + 12 + (1 x 3) = 58 g/mol.

7 0
3 years ago
Help me please anyone
Evgesh-ka [11]
Just do it one at a time. How is heart rate affected by exersice? Well, think about it; When you run, your heart rate goes up. When you rest, it goes down. 
Take you time, think carefully and you'll get it.
How are bean seeds affected by water with detergent in it? Well it's not pure water. it's like feeding it soap and expecting it to grow..
6 0
3 years ago
What would be the product when combustion reaction occurs in a small tightly closed container
Andreyy89

I would think Carbon monoxide and water.

3 0
3 years ago
Read 2 more answers
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