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2 years ago

Sijagsjshshsjwhwbsisjwbshhs

Chemistry

2 answers:

stira [4]2 years ago

7 0

Answer:

fjrjrnrirjrjjrjrjdiejejjdoajwjdoornrkrjrjroenejdjejjejjeujrjrbdjjendjjdjdjeneoapwnsbqkskennskennejdjeccjrjnrjrbbrjkwkwnnsjwjejjejeniebejjdiejejeiwnekwkiejejejj2jekwkwjekwok2mwnwjenrnowo2p1plaks

Anettt [7]2 years ago

5 0

Answer:

Thanks- :D

Explanation:

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A fish tank holds 45 gal of water. How many kilograms of water are in the fish tank?

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Answer:

How to convert 45 gal to kg? You can use the following formula to convert from Gallon to Kilograms :

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To convert 45 Gallon to Kilograms:

X(oz) = 45(gal) / 0.264172053

Answer: 170.3435 kg

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1 year ago

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2 years ago

A container is filled with helium gas. It has a volume of 2.25 liters and contains 9.00 moles of helium. How many moles of heliu

Darina [25.2K]

Answer: There are 7.4 moles of helium gas present in a 1.85 liter container at the same temperature and pressure.

Explanation:

Given: $V_{1}$ = 2.25 L, $n_{1}$ = 9.0 mol

$V_{2}$ = 1.85 L, $n_{2}$ = ?

Formula used to calculate the moles of helium are as follows.

$\frac{V_{1}}{n_{1}} = \frac{V_{2}}{n_{2}}\\$

Substitute the values into above formula as follows.

$\frac{V_{1}}{n_{1}} = \frac{V_{2}}{n_{2}}\\\frac{2.25 L}{9.0 mol} = \frac{1.85 L}{n_{2}}\\n_{2} = \frac{1.85 L \times 9.0 mol}{2.25 L}\\= 7.4 mol$

Thus, we can conclude that there are 7.4 moles of helium gas present in a 1.85 liter container at the same temperature and pressure.

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2 years ago

What substance is reduced in the reaction 2Fe 2+ + CI2 = 2Fe 3+ + 2CI- ?

atroni [7]

Answer:

$Cl_{2}$ is reduced in the reaction

Explanation:

The given reaction is

$2Fe^{2+}+Cl_{2} \to 2Fe^{3+}+2Cl^{-}$

The oxidation number of $Fe$ is changed from $+2\, \to \, +3$

$Fe^{2+} \to Fe^{3+}+e^{-}$

And The oxidation number of $Cl$ is changed from $0\, \to \, -1$

$Cl_{2}^{0} + 2e^{-} \to 2Cl^{-}$

Hence, $Fe^{2+}$ is oxidized and $Cl_{2}$ is reduced

5 0

3 years ago