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3 years ago

with respect to composition, how is the compound made from hydrogen and oxygen different from mixtures of these two elements?

1 answer:

8 0

Each substance in the mixture keeps its own properties and can be easily separated from the mixture. In a mixture of hydrogen and oxygen, molecules of both the gases will exist independently.
The compound on the other hand has properties different from the elements it contains. In water as a compound of hydrogen and oxygen what you will have is molecules of H20.

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An electrode has a potential of 1.201 V with respect to a saturated silver-silver chloride electrode. What would the electrodes

fredd [130]

Answer:

The potential wrt. calomel is 1.254 V

Explanation:

Given:

Potential wrt. silver chloride $E_{Ag} = 1.201$ V

Potential wrt. saturated silver chloride $E = 0.197$ V

Potential wrt. SCE $E_{Hg} = 0.241$ V

Now potential wrt. hydrogen is given by,

$= 1.201- 0.197$

$= 1.004$ V

And we find for potential wrt. calomel,

$=$ potential wrt. hydrogen + potential wrt. SEC

$= 1.004 +0.241$

$= 1.254$ V

Therefore, the potential wrt. calomel is 1.254 V

7 0

2 years ago

How many significant figures are in this number? 43.55

leva [86]

Answer:

4 significant figures

Explanation:

Significant figures are the units/digits within a number that make the number more accurate and precise.

All digits (except for 0) are always significant. Therefore, all the digits in 43.55 are significant. Since there are 4 digits in the given number, there are 4 significant figures.

7 0

1 year ago

A women steps in front of a child to keep him from running off which term best describes this example

valina [46]

Negative force

The woman is applying force to stop the child or to prevent him from running.

I hope this helps...

4 0

3 years ago

If the mass of a certain block is 500g, what is the weight of the block?

Dafna11 [192]

______________________________

Solution,

Mass=500g =500/1000=0.5 kg

gravity(g)=9.8m/s^2

Now,

Weight= m*g

 = 0.5*9.8

 =4.9 N

So the weight of the block is 4.9 Newton

hope it helps...

Good luck on your assignment

5 0

3 years ago

Normal body temperature is 98.6 degrees fahrenheit is what degrees Celsius

anyanavicka [17]

Answer: 37

Explanation:

8 0

3 years ago

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