2 years ago

Need help with these 2 ez questions will mark brainiest btw!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

1 answer:

fomenos2 years ago

7 0

i don't see the questions just a little icon of a picture

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Mars2501 [29]

Answer:

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Explanation:

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3 years ago

Step2247 [10]

Bent 6A is the answer

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3 years ago

Monica [59]

Answer:

Explanation:

It is so because the low air pressure create vacuum and the air from high pressure area move toward the low air pressure.

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2 years ago

Naily [24]

Answer: 60.7 g of $PH_3$ will be formed.

Explanation:

To calculate the moles :

$\text{Moles of solute}=\frac{\text{given volume}}{\text{Molar volume}}$

$\text{Moles of} H_2=\frac{60L}{22.4L}=2.68moles$

The balanced chemical reaction is

$P_4(s)+6H_2(g)\rightarrow 4PH_3(g)$

$H_2$ is the limiting reagent as it limits the formation of product and $P_4$ is the excess reagent.

According to stoichiometry :

6 moles of $H_2$ produce = 4 moles of $PH_3$

Thus 2.68 moles of $H_2$ will produce= $\frac{4}{6}\times 2.68=1.79moles$ of $PH_3$

Mass of $PH_3=moles\times {\text {Molar mass}}=1.79moles\times 33.9g/mol=60.7g$

Thus 60.7 g of $PH_3$ will be formed by reactiong 60 L of hydrogen gas with an excess of $P_4$

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3 years ago

Burka [1]

Can i get a list of possible answers plz?

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3 years ago