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Mice21 [21]
3 years ago
12

Balance A FeS2 + B O2 → C Fe2O3 + D SO2 *

Chemistry
1 answer:
Eduardwww [97]3 years ago
3 0

Answer:

4FeS2 + 6O2 > 2Fe2O3 + 8SO2

Explanation:

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0.06 has one significant figure (unless there are zeros written after it). So I would round the result to 6000. Some teachers prefer at least 2 significant figures though.
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What happens if you drink juice instead of water? reddit?
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In a hotel breakfast bar, you see an older woman sticking a fork into a toaster to remove a piece of toast. You warn her not to
astraxan [27]

Answer:

See explanation

Explanation:

You see, all these materials we see around us are composed of elements. These elements are unique in their own ways!

Some of them are able to attract tiny negative particles called electrons close to their positive interior called the nucleus. This positive interior is so designated because it contains a positive particle called protons which attract these electrons.

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Since metals give away electrons easily, they can conduct electricity since electrons are the same charge carriers in electric circuits.

Also, in elements, there is a conduction band and a valence band. Electrons  occupy the valence band but also move into the conduction band. The gap between the valence band and the conduction band in nonmetals is large hence they do not conduct electricity. The gap between the valence band and the conduction band in metals is minimal hence metals conduct electricity.

So if you stick that fork into a toaster, electrons can flow right through the toaster circuit into your body and cause you to be electrocuted.

7 0
3 years ago
2 K + Cl2 → 2 KCI<br> How many grams of KCI (74.55 g/mol) is produced from 2.50 mol of K?
Rudik [331]

Answer:  186.3 g of KCl will be produced from 2.50 mol of K

Explanation:

The balanced chemical reaction is:

2K+Cl_2\rightarrow 2KCl  

According to stoichiometry :

2 moles of K produce = 2 moles of KCl

Thus 2.50 moles of K will produce=\frac{2}{2}\times 2.50=2.50moles  of KCl

Mass of KCl=moles\times {\text {Molar mass}}=2.50moles\times 74.55g/mol=186.3g

Thus 186.3 g of KCl will be produced from 2.50 mol of K

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3 years ago
if a car travels 20 kilometers in 10 seconds then what is the average speed of the car in kilometers per secknd?
AnnZ [28]
2 kilometers per second 
8 0
3 years ago
Read 2 more answers
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