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Nataly_w [17]
3 years ago
12

Muscovite of Density

Chemistry
1 answer:
velikii [3]3 years ago
3 0

Answer:

what is your question what are you trying to ask

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The pictures below show water in a glass and oil in a beaker.
Archy [21]

Answer: is letter D. Because minerals are solid.

Explanation:

3 0
3 years ago
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Phosphine, an extremely poisonous and highly reactive gas, will react with oxygen to form tetraphosphorus decoxide and water, as
erica [24]

<u>Answer:</u> The amount of P_4O_{10} formed is 469.8 grams.

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}     ......(1)

Given mass of phosphine = 225 g

Molar mass of phosphine = 34 g/mol

Putting values in equation 1, we get:

\text{Moles of phosphine}=\frac{225g}{34g/mol}=6.62mol

The given chemical reaction follows:

4PH_3(g)+8O_2(g)\rightarrow P_4O_{10}(s)+6H_2O(g)

Assuming that oxygen gas is present in excess, it is considered as an excess reagent.

Phosphine is considered as a limiting reagent because it limits the formation of product.

By Stoichiometry of the reaction:

4 moles of phosphine produces 1 mole of P_4O_{10}

So, 6.62 moles of phosphine will produce = \frac{1}{4}\times 6.62=1.655mol of P_4O_{10}

Now, calculating the mass of P_4O_{10} by using equation 1:

Molar mass of P_4O_{10} = 283.9 g/mol

Moles of P_4O_{10} = 1.655 moles

Putting values in equation 1, we get:

1.655mol=\frac{\text{Mass of }P_4O_{10}}{283.9g/mol}\\\\\text{Mass of }P_4O_{10}=(1.655mol\times 283.9g/mol)=469.8g

Hence, the amount of P_4O_{10} formed is 469.8 grams.

8 0
3 years ago
Identify each of the following as either an element or Compound. Write (E) for Element and (C)
castortr0y [4]

Carbon = C

Water = C

Aluminum foil = E

Plastic = E

Tin = E

Silicon dioxide = C

Helium = C

Arsenic = C

Carbon dioxide = C

Sodium Chloride = C

4 0
3 years ago
What’s “the ring of fire” meaning ( no answers from goo gle please I really wanna understand this because it’s coming in my test
klemol [59]

Answer:

"Ring of Fire" sounds ominous, the term refers to falling in love

Explanation:

Brainliest???

8 0
2 years ago
Anybody know this ?? If so help ASAP .
Marizza181 [45]

Answer:

Mechanical Energy

Explanation:

Definition: Mechanical Energy The mechanical energy is

the sum of the kinetic and potential energies.

4 0
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