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3 years ago

How many iron atoms are in the formula for iron(III) oxide?

Chemistry

1 answer:

velikii [3]3 years ago

8 0

Answer:

There is two iron atoms.

Explanation:

The formula iron oxide is Fe2O3 F e 2 O 3 therefore there would be two. Hope this helps. :)

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Solutions can be composed of:

Anika [276]

A solution may exist in any phase so your answer is D. any of the above

hope this helps :)

7 0

3 years ago

at atmoshperic pressure, a balloon contains 2.00L of nitrogen of gas. How would the volume change if the Kelvin temperature were

Nataly [62]

<u>Answer:</u> The percent change in volume will be 25 %

<u>Explanation:</u>

To calculate the final temperature of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

$\frac{V_1}{T_1}=\frac{V_2}{T_2}$

where,

$V_1\text{ and }T_1$ are the initial volume and temperature of the gas.

$V_2\text{ and }T_2$ are the final volume and temperature of the gas.

We are given:

$V_1=2L\\T_1=T_1\\V_2=?\\T_2=75\% \text{ of }T_1=0.75\times T_1$

Putting values in above equation, we get:

$\frac{2L}{T_1}=\frac{V_2}{0.75\times T_1}\\\\V_2=\frac{2\times 0.75\times T_1}{T_1}=1.5L$

Percent change of volume = $\frac{\text{Change in volume}}{\text{Initial volume}}\times 100$

Percent change of volume = $\frac{(2-1.5)}{2}\times 100=25\%$

Hence, the percent change in volume will be 25 %

5 0

2 years ago

What earths layer is broken up like puzzle pieces

lilavasa [31]

The crust because there are tectonic plates.

4 0

3 years ago

What element is Column 1, period 3

Finger [1]

Answer:

Sodium (Na)

Explanation:

The element on the periodic table at Column (group) 1, period 3 is Sodium (Na)

3 0

2 years ago

Which chemical equation best represents the process of photosynthesis?

Over [174]

Answer:

6CO2 + 6H20 ----> C6H12O6 + 6O2

Explanation:

(Carbon Dioxide) + (Water) ------> (Glucose) + (Oxygen)

6 0

2 years ago

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