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3 years ago

What type of compound does the formula, Fe2O3, represent ?

Chemistry

1 answer:

seraphim [82]3 years ago

8 0

It is:
Iron (III) Oxide

As a transition metal iron can have two oxidation states Fe+2 ferrous or Fe+3ferric.

Oxygen has an oxidation state of O−2.

In the case of Fe2O3 the oxidation states are balanced when 2 Fe+3 ions pair with 3 O−2.

Fe2O3 is Iron (III) oxide where the roman numeral informs us that the charge on the iron is +3, the common name would be ferric oxide.

If the iron was Fe+2 and the oxygen O−2, the formula would be FeO Iron (II) oxide or ferrous oxide.

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A race car is driven by a professional driver at 99 . What is this speed in and ? 1 mile = 1.61 kilometers 1 hour = 60 minutes E

slavikrds [6]

Answer: The speed is equivalent to 159.39 kilometers per hour or 2.65 kilometers per minute.

Explanation:

Given, The speed of a race car = 99 miles/ hour

To convert the speed into kilometers per hour and kilometers per minute

Since 1 mile = 1.61 kilometers

So, Speed of car = (99 ) x (1.61 )

= 159.39 kilometers per hour.

Also, 1 hour = 60 minutes

Then, Speed of car = (159.39) ÷60

= 2.6565≈2.65 kilometer per minute.

Hence, the speed is equivalent to 159.39 kilometers per hour or 2.65 kilometers per minute.

4 0

3 years ago

The chemical formula for table sugar is C 12 H 11 O 22 . What can you tell from this formula?

Paraphin [41]

The the last one, but isn't it c6h12o6?

8 0

3 years ago

How many moles of dinitrogen monoxide are present in 9.3 x 10^22 molecules of this compound?

Step2247 [10]

Answer:

<h2>0.15 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities.

From the question we have

$n = \frac{9.3 \times {10}^{22} }{6.02 \times {10}^{23} } \\ = 0.154485...$

We have the final answer as

<h3>0.15 moles</h3>

Hope this helps you

8 0

3 years ago

Lab activity - Law of Conservation of Mass with vinegar and baking soda.

lesya [120]

Answer: I BIG DUMB

Explanation:

7 0

2 years ago

What is the Lewis dot structure for oxygen?

BabaBlast [244]

This is the Lewis Dot structure for oxygen

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2 years ago