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Nataliya [291]
3 years ago
8

Is 4Na a molecule or an atom

Chemistry
1 answer:
swat323 years ago
4 0

Oxygen in the atmosphere is a molecule because it contains molecular bonds. It is not a compound because it is made from atoms of only one element oxygen. This type of molecule is called a diatomic molecule, a molecule made from two atoms of the same type

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20 ML of a gas at 200 K is heated until the new volume is 55ML what is the final temperature of the gas
MrRa [10]

Answer:

T2 = 550K

Explanation:

From Charles law;

V1/T1 = V2/T2

Where;

V1 is initial volume

V2 is final volume

T1 is initial temperature

T2 is final temperature

We are given;

V1 = 20 mL

V2 = 55 mL

T1 = 200 K

Thus from V1/T1 = V2/T2, making T2 the subject;

T2 = (V2 × T1)/V1

T2 = (55 × 200)/20

T2 = 550K

8 0
3 years ago
What is another name for groups of elements?
jeka94
They are called groups or family. Hope this helps 
6 0
3 years ago
What advice would you give a person who handles hydrogen and oxygen in their workplace?
Murljashka [212]


Regard the principle of utilization of two gas.

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Make a consistent control of weight diminishing valves giving gas.

No smoking zone.
3 0
3 years ago
Calculate the molarity of a solution prepared by dissolving 1.495 moles of lioh in enough water to give a final volume of 750. m
zhenek [66]
Molarity can be defined as the number of moles of substance dissolved in 1 L of solution.
In the given question ,
number of LiOH moles - 1.495 mol
Dissolved volume - 750 mL
molarity is calculated for 1 L = 1000 mL
In 750 mL - 1.495 mol of LiOH is dissolved
Therefore in 1000 mL - 1.495 mol / 750 mL x 1000 = 1.99 mol

4 0
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Give an example based upon particle argument​
lesya692 [45]

Answer:

squeezing syringes contain gas

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