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Aloiza [94]
2 years ago
7

Balance the following equation:

Chemistry
1 answer:
Sonbull [250]2 years ago
5 0
You only need a 2 at the end In front of the NaCl
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Am i the only one getting a red text saying my question is mean?
Triss [41]

Answer:

I dont know

Explanation:

8 0
3 years ago
In a 100 g sample of iron(III) oxide, how many grams of iron are present?
e-lub [12.9K]
The formula of Iron(III) oxide is Fe2O3
In order to calculate the mass of iron in a given sample of iron(III) oxide, we must first know the mass percentage of iron in iron(III) oxide. This is calculated by:
[mass of iron in one mole of iron(III) oxide/ mass of one mole of iron(III) oxide] * 100 
= [(moles of iron * Mr of iron) / (moles of Iron * Mr of Iron + moles of Oxygen * Mr of Oxygen)] * 100
= [(2 * 56) / (2 * 56 + 3 * 16)] * 100
= (112 / 160) * 100
= 70%
Thus, in a 100g sample, the weight of iron will be:
100 * 70%
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8 0
3 years ago
Which if the following numbers in your personal life are exact numbers?
mr_godi [17]

Answer:

I think D

Explanation:

4 0
2 years ago
How can I calculate the valence electrons of ions?
DIA [1.3K]

First of all, you should know the valence electron of atom.

Then add charge, In case of -ve ion & subtract, in case of +ve ion.

8 0
3 years ago
¿Cuántos moles de bióxido de Nitrógeno (NO 2) se forman cuando reaccionan 5 moles de Nitrógeno (N 2)?
o-na [289]

Answer:

10 moles de NO2

Explanation:

Tenemos la ecuación de la reacción como sigue;

 N2 (g) + 2 O2 (g) → 2 NO2 (g)

Asi que;

Si 1 mol de nitrógeno produce 2 moles de NO2

5 moles de nitrógeno producirán 5 * 2/1 = 10

Por tanto, se producen 10 moles de NO2 moles

5 0
3 years ago
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