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olga55 [171]
3 years ago
8

Classify the following chemical reaction: CH4+ 2O2 → CO2 + 2H2O

Chemistry
1 answer:
Andrej [43]3 years ago
6 0

Answer:

complete combustion

Explanation:

in excess amount of air CH4 reacts with oxygen to form CO2 and H2O

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Under most conditions, an atom has the same number of protons and electrons.
Zepler [3.9K]

Answer:

True! Under most conditions, they are usually the same.

This is because to balance out the negativity or positivity of an atom, the opposite joins in.

Hope this helps.

3 0
3 years ago
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The number of moles of H2O which contains 4g of oxygen?
satela [25.4K]

Answer:

16G = 1 mole ; then 4G = how many moles? 4/16 = 0.25 mole; That means 4 grams of oxygen is 0.25 moles.

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3 years ago
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What sequence should be followed when conducting a laboratory investigation? Make observations, gather experimental data, form a
AURORKA [14]

Answer:

Define a problem, form a hypothesis, gather experimental data, form a conclusion

3 0
4 years ago
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If you have 200 grams of SO4, how many molecules of SO4 will you have?
den301095 [7]

Answer:

2.08 moles

Explanation:

number of molecules = mass / molecular mass of SO₄

number of molecules = 200 g / 96.06 g/mol

number of molecules ≈ 2.08

6 0
3 years ago
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A sample of a pure compound that weighs 60.3 g contains 20.7 g Sb (antimony) and 39.6 g F (fluorine). What is the percent compos
Volgvan

Answer:

The percent composition of fluorine is 65.67%

Explanation:

Percent Composition is a measure of the amount of mass an element occupies in a compound. It is measured in percentage of mass.

That is, the percentage composition is the percentage by mass of each of the elements present in a compound.

The calculation of the percentage composition of an element is made by:

percent composition element A=\frac{total mass of element A}{mass of compound} *100

In this case, the percent composition of fluorine is:

percent composition of fluorine=\frac{39.6 g}{60.3 g} *100

percent composition of fluorine= 65.67%

<u><em>The percent composition of fluorine is 65.67%</em></u>

4 0
4 years ago
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