3 years ago

Which formula correctly represents the composition of iron (III) oxide?

Chemistry

2 answers:

lisov135 [29]3 years ago

8 0

Iron (III) oxide has a chemical formula of (2) Fe2O3.

Hope this helps~

shutvik [7]3 years ago

4 0

2) Fe2O3 because Oxygen has has a negative 2 charge and Iron has a -3 charge so u need 2 iron and 3 oxygen

You might be interested in

Which of the following always contains

erica [24]

Answer:

1 mole of atom is correct.

8 0

3 years ago

Read 2 more answers

What would be the mass of a 33.5dm3 sample of O2 at STP?

liraira [26]

Answer:

• One mole of oxygen is equivalent to 16 grams.

→ But at STP, 22.4 dm³ are occupied by 1 mole.

${ \tt{22.4 \: {dm}^{3} \: \dashrightarrow \: 16 \: grams}} \\ { \tt{33.5 \: {dm}^{3} \: \dashrightarrow \: ( \frac{33.5 \times 16}{22.4} ) \: grams}} \\ \\ \dashrightarrow \: { \boxed{ \tt{23.94 \: g \approx \: 24 \: grams}}}$

7 0

2 years ago

An archaeologist discovered some charcoal at an excavation site. He sent the samples to a lab for C-14 dating, knowing that the

klio [65]

Here we assume that disintegration has occur so the normal t½ formular will not be used
mathematically we..⅛×5600 =700
therefore it is about 700years option A

7 0

2 years ago

How long should i cook my pizza rolls?<br><br><br> pwease hewp im hunggy

mixer [17]

Answer:

depends on how many you have...

Explanation:

4 0

2 years ago

Read 2 more answers

Periodic table <br> fill in the box :)

Natalija [7]