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3 years ago

Three reasons for air is mixture and water is compound

2 answers:

8 0

1. air components change from place to place, while water will just stay the same

2. Water doesn't have nor show individual properties, but air does show that it has it's own property

3. You can separate different gases from air physically, but with water you must pass electricity through it.

Don't take my word for it, this is just what I learned back in middle school.

Tema [17]3 years ago

4 0

1. different gases mix together to form air and no new compound is formed
2, air has varible composition
3. air shows the properties if its constituent substances

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Find the number of moles of water that can be formed if you have 170 mol of hydrogen gas and 80 mol of oxygen gas. Express your

Sav [38]

<u>Answer:</u> The amount of water that can be formed is 160 moles

<u>Explanation:</u>

We are given:

Moles of hydrogen gas = 170 moles

Moles of oxygen gas = 80 moles

The chemical equation for the reaction of hydrogen gas and oxygen gas follows:

$2H_2+O_2\rightarrow 2H_2O$

By Stoichiometry of the reaction:

1 mole of oxygen gas reacts with 2 moles of hydrogen gas

So, 80 moles of oxygen gas will react with = $\frac{2}{1}\times 80=160mol$ of hydrogen gas

As, given amount of hydrogen gas is more than the required amount. So, it is considered as an excess reagent.

Thus, oxygen gas is considered as a limiting reagent because it limits the formation of product.

By Stoichiometry of the reaction:

1 mole of oxygen gas produces 2 moles of water

So, 80 moles of oxygen gas will produce = $\frac{2}{1}\times 80=160moles$ of water

Hence, the amount of water that can be formed is 160 moles

3 0

3 years ago

I don't know how to do this?helpppp!

Charra [1.4K]

Joules? i m not sure about this E Q U A S I O N

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3 years ago

How much kilometers is in 6000m

lord [1]

Answer:

about 3 miles i think

Explanation:

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3 years ago

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Help me with this please !!!

Daniel [21]

militer is the answer

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3 years ago

What is e° cell for the reaction of nickel(ii) ions with cadmium metal at 25°c? ( r = 8. 314 j/k • mol, f = 96,500 c • mol –1) n

Alexus [3.1K]

At anode,

Cd-----> + 2

At cathode,

+ 2e -----> Ni

Overall reaction,

+ Cd(s) ------> + Ni K=1.17

(aq) (aq) (s)

By nernst equation,

E= - Log K

Where,

F=96500c/mol

M=2

T=298K

E=Zero at equilibrium

R=8.314 J

0= - Log(1.17)

= 0.150v

what is nernst equation?

The Nernst equation is a chemical thermodynamical relationship used in electrochemistry that enables the determination of a reaction's reduction potential (half-cell or full-cell reaction) from the standard electrode potential, absolute temperature, the number of electrons involved in the oxydo-reduction reaction, and activities (often approximated by concentrations) of the chemical species undergoing reduction and oxidation, respectively. It was given the equation's original name in honor of the German physical scientist Walther Nernst.

The link between cell potential, standard potential, and the behaviors of electrically active (electroactive) species is described by the Nernst equation. It links the standard cell potential to the effective concentrations (activities) of the reaction's constituent parts.

Learn more about nernst equation visit here:-

brainly.com/question/75084?referrer=searchResults

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2 years ago