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vlabodo [156]
3 years ago
12

How many atoms of iron are there in 5.00 g of iron?

Chemistry
1 answer:
shepuryov [24]3 years ago
4 0
I am not sure sorry
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How does water change when it is frozen?
vredina [299]

Answer:

the molecules of water contracts when it is frozen

7 0
3 years ago
Which of the following does NOT indicate that a chemical change may have taken place?
labwork [276]

The following does NOT indicate that a chemical change may have taken place is fracture formation. A chemical change happens when the substance changes its physical state and composition resulting from a chemical reaction. This chemical reaction may either give off or absorb energy. A change in color is a chemical change. For example, litmus paper turns to red when placed in an acid solution. Production of gas is a chemical change. For example, adding hydrochloric acid to the tiles of the bathroom gives a hissing sound with gases given off. Formation of a precipitate is also a chemical change. Change in shape is not a chemical change.

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3 0
3 years ago
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Can someone help me with this question its confusing<br> ASAP
iris [78.8K]

Answer:

temperature

Explanation:

8 0
4 years ago
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If I have 3.2 moles of gas at a pressure of 0.095 atm and at a temperature o 43 C what is the volume of the container that the g
andriy [413]

Answer

The volume of the container that the gas is in = 874.30 L

Explanation

Given:

Moles, n = 3.2 mol

Pressure, P = 0.095 atm

Temperature, T = 43 °C = (43 + 273.15 K) = 316.15 K

Molar gas constant, R = 0.0821 atm•L/mol•K

What to find:

The volume of the container that the gas occupied.

Step-by-step solution:

The volume of the container that the gas occupied can be calculated using the ideal gas equation.

\begin{gathered} PV=nRT \\  \\ \Rightarrow V=\frac{nRT}{P}=\frac{3.2mol\times0.0821atm•L/mol•K\times316.15K}{0.095atm} \\  \\ V=\frac{83.058928\text{ }atm•L}{0.095\text{ }atm}=874.30\text{ }L \end{gathered}

Therefore, the volume of the container that the gas occupied is 874.30 L

5 0
1 year ago
The density of a gas is 1.35 L what is the volume of the gas when the mass is 12.5 g
mart [117]

Answer:

<h2>9.26 L</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question we have

density =  \frac{12.5}{1.35}  \\  = 9.259259...

We have the final answer as

<h3>9.26 L</h3>

Hope this helps you

8 0
3 years ago
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