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arsen [322]
3 years ago
6

What is the balanced chemical equation for the word equation below?

Chemistry
1 answer:
ladessa [460]3 years ago
6 0

Answer:

4Fe + 3O₂ → 2Fe₂O₃

Explanation:

Fe → ²⁺

O → ²⁻

But Iron III is Fe³⁺

So we have Fe³⁺ and O²⁻, the formula for the oxide must be Fe₂O₃ so the equation can be:

4Fe + 3O₂ → 2Fe₂O₃

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Discuss on the law of corresponding states​
sukhopar [10]

Answer: The law of corresponding states is an empirical law according to which the equations of states for real gases are similar when these gases are expressed in reduced temperature, pressures, and volumes at critical point.

6 0
2 years ago
A scientist is studying a radioactive element that has a half-life of 63 years. Choose the correct answers from the drop-down me
attashe74 [19]
<h3>Answer:</h3>

63 years

Eighth

The number of half lives

<h3>Explanation:</h3>

It will take 63 years for half of the sample to decay

In 189 years, eighth of the sample will be left

Scientists can figure out how old a sample is by multiplying the number of half lives by the length of the half life.

Half life is the time taken by a radioactive sample to decay to half of the original amount.

Therefore, for a radioactive element with a half-life of 63 years, it will take 63 years for the sample to decay to half of the original amount.

After 189 years, only an eighth of the sample will be left.

That is, 189 years is equivalent to 3 half-lives

Therefore, if the original amount is 1, then;

1 → 0.5 → 0.25 → 0.125

Thus, scientists can figure out how old a sample is by multiplying the number of half lives by the length of the half life.

4 0
3 years ago
Read 2 more answers
I need help please
nika2105 [10]

Answer: No but yes if that made since

Explanation: unless every male or female suddenly leaves the facility we ain't going nowhere

6 0
3 years ago
Consider the reaction below.
brilliants [131]
In the balanced reaction shown, there are twice as many moles of water as oxygen. If 13.35 moles of oxygen are reacted, 26.70 moles of water is formed.
5 0
3 years ago
Read 2 more answers
how many moles of solute are contained in 500.00 milliliter solution that has a concentration of 0.35M
igomit [66]

1.75 moles of Solute or 1.75n.

To find this, you'll need to use the molarity equation which is M = \frac{n}{v}

List the given items to organize better:

M (Molarity) = .35

V (Volume) = 5L [must always be in Liters]

n (Moles) = ?

Now, for the equation, substitute the variables with the given numbers:

.35 = \frac{n}{5}

Isolate the variable by multiplying the volume, 5, onto both sides. This will give you the answer of:

1.75 = n

Hope this helps!

6 0
3 years ago
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