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Kamila [148]
3 years ago
5

How many particles would be found in a 89.2 g sample of Na?

Chemistry
1 answer:
julsineya [31]3 years ago
5 0
One mole of a substance contains 6.02 × 10∧23 particles. Thus we first convert  89.2 g to moles. 1 mole of sodium contains 23 g
Hence 89.2 g = 89.2 / 23 g = 3.878 moles
Therefore, 3.878 × 6.02×10∧23 particles= 23.346 × 10∧23 particles
Hence 89.2 g of sodium contains 2.335 ×10∧24 particles 
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Substances have more kinetic energy in the gas state than in the solid state
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3 years ago
A pound of margarine costs $1.39. What is the cost of a kilogram of margarine
den301095 [7]

Answer:

              3.064 $

Solution:

First of all we will find the number of pounds contained by one Kg. Therefore, it is found that,

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Hence, as given,

                        1 Pound of Margarine costs  =  1.39 Dollars

So,

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Solving for X,

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8 0
3 years ago
Which type of substance ionizes completely and creates hydronium ions when dissolved in water?
maw [93]

Answer:

Strong acid

Explanation:

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A strong acid is one that ionizes almost completely. Examples are:

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8 0
3 years ago
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kifflom [539]

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Thus the correct answer is the third option.

8 0
3 years ago
An acid increases the hydroxide ion concentration of water.<br>True<br>or<br>False
ASHA 777 [7]
False is the answer!
3 0
3 years ago
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