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Trava [24]
2 years ago
9

Balance the following equations

Chemistry
1 answer:
hoa [83]2 years ago
8 0

Answer:

Explanation:

2Al + 3Cl2 --> 2AlCl3

Ag2O + Be -----> 2Ag + BeO

4K + O2 ---> 2K2O

CoP  + 3NaBr ---> CoBr3 + Na3P

Si +  Hg2S ---> SiS2 + Hg

6Li + Ni3N2 --- > 2Li3N + 3Ni

3Ca + 2K3N  --> Ca3N2 + 6K

SnS2 + 2F2 --> SnF4 + 2S

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List three things that rely on the Sun as the major source of energy​
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Answer:

Three things that rely on the sun for energy is coal,oil, and natural gases

Explanation:

We use engery too cook our food that's an example of how gases are used.

We run our cars .Cars use oil.

And we use electricity for lights. You need coal for the electricity

6 0
3 years ago
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Which set of coefficients will balance this chemical equation?
Lena [83]

Answer:The answer is D.1,3

Explanation:

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3 years ago
What is the gasoline doing to our environment?
luda_lava [24]
Gasoline use contributes to air pollution
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3 years ago
One half of the distance between the nuclei of two atoms bonded together by a single bond is known as
vodka [1.7K]
Answer is: <span>an atomic radius.

</span>The atomic radius<span> of a </span>chemical element<span> is a measure of the size of its atom.
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7 0
3 years ago
please help me with Chem I ONLY HAVE 5 MINUTES if methane gas (CH4) flows at a rate of 0.25L/s, how many grams of methane gas wi
Nookie1986 [14]

Answer:

643g of methane will there be in the room

Explanation:

To solve this question we must, as first, find the volume of methane after 1h = 3600s. With the volume we can find the moles of methane using PV = nRT -<em>Assuming STP-</em>. With the moles and the molar mass of methane (16g/mol) we can find the mass of methane gas after 1 hour as follows:

<em>Volume Methane:</em>

3600s * (0.25L / s) = 900L Methane

<em>Moles methane:</em>

PV = nRT; PV / RT = n

<em>Where P = 1atm at STP, V is volume = 900L; R is gas constant = 0.082atmL/molK; T is absolute temperature = 273.15K at sTP</em>

Replacing:

PV / RT = n

1atm*900L / 0.082atmL/molK*273.15 = n

n = 40.18mol methane

<em>Mass methane:</em>

40.18 moles * (16g/mol) =

<h3>643g of methane will there be in the room</h3>
5 0
3 years ago
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