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gregori [183]
3 years ago
5

Electrolytes are defined as those compounds which...

Chemistry
2 answers:
jeyben [28]3 years ago
5 0
Electrolytes are defined as those compounds which <span>conduct electricity by changing into ions when melted or dissolved into a solution.</span>
love history [14]3 years ago
5 0

Electrolytes are defined as those compounds which dissolve in a solvent such as water to produce a solution which conducts electric current easily .

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The temperature of 100. g of water at 25.0C increases to 31.9C. How much energy was added to the water? The specific heat of wat
Yakvenalex [24]

Answer:

2890j

Explanation:

5 0
3 years ago
Geologist know that potassium 40 decays to argon 40, with a half life of 1.3 billion years. analysis of a hypothetical sample of
meriva

First let us calculate for the rate constant k from the formula:

k = ln(2) / t0.5

where t0.5 is the half life

k = ln(2) / 1.3x10^9 years

k = 5.33x10^-10 years-1

 

Then we use the formula:

A/Ao = e^-kt

where A/Ao is the amount remaining = 25% = 0.25, t is time

 

Rearranging to get t:

t = ln(A/Ao) / -k

t = ln(0.25) / (-5.33x10^-10 years-1)

t = 2.6x10^9 years

4 0
4 years ago
Read 2 more answers
Anyone know how to do this???
IgorC [24]

Answer:

nope

Explanation:

cuz i cant do math

8 0
3 years ago
What is the oxidation state of sulfur in SO3?
alex41 [277]
The oxidation state of a substance is the electric charge it is exhibiting in a given state. This may be determined by looking at the oxidation states of accompanying atoms as well as the charge on the complete molecule.

In this case:

Molecular charge: 0
Oxidation state of oxygen: -2 (it is a group 6 element)

Thus,

S + 3 * -2 = 0
S = 6

Sulfur is exhibiting an oxidation state of +6.
8 0
3 years ago
How many moles of H20 are contained in 4.21 x 1024 molecules of H2O?
Sphinxa [80]

Answer:

C. 6.99 moles

Explanation:

To convert molecules to moles we simply divide the given number of molecules by Avogadro's number, 6.022 x 10²³

Given number of molecules : 4.21 x 10^24

Number of moles : 4.21 x 10^24 / 6.022 x 10²³ = 6.99 moles ( rounded )

The answer is C

8 0
3 years ago
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