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Pavlova-9 [17]
3 years ago
10

PLEASE ANSWER CORRECTLY URGENT!!!!!!CH4 is the ___________________ formula for methane. A) Lewis B) covalent C) molecular D) str

uctural
Chemistry
2 answers:
Darya [45]3 years ago
6 0
It would be c 
hoped this helped
brainlyist pls

Elena-2011 [213]3 years ago
4 0
That is the molecular formula for methane.

Answer: C.

Hope this helps!
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If you start with 4 moles of iron and 3 moles of oxygen to produce iron oxide, what is the limiting reagent? (You will need to b
marshall27 [118]

Answer:

No limiting reagent. There is an exact amount  of each.

Explanation:

Start by getting the equation

Fe + O2 -> Fe2O3

If you balance the oxygens the Fe will easily follow.

Fe + 3O2 => 2Fe2O3

So far what you have is 6 oxygens on the right and 6 on the left. Now all you need do is balance the irons. The are 4 on the right (2Fe2). So you must have 4 on the left.

4Fe + 3O2 -> 2Fe2O3

Now to your question if you have 4 mols of iron, you need 3 mols of O2. Those are the balance numbers of the equation. They also represent mols.

There is no limiting reagent in the theoretical world of chemistry. All the iron will be used up and so will the given amount of oxygen.

5 0
4 years ago
On day 5, only two turtles are on the beach. Describe an unknown variable that could have affected the data.
kompoz [17]
It's in beach bed .it was any various and Land reptile . it is production of eggs on the beach bed
4 0
4 years ago
If the pressure of a gas is 100 kPa when the volume is measured to be 500 mL. What pressure would need to be exerted to have the
Korvikt [17]

Answer:

p2=125 kpa

Explanation:

Using Boyle's law

p1 x v1 = p2 x v2

p1=100kpa

v1=500ml

p2=?

v2=400ml

p2= (100x500)\400

p2=125 kpa

:)

8 0
4 years ago
What is the bond between a posative and a negative ion called
guajiro [1.7K]

Answer:

Your answer would be Ionic bond.

5 0
3 years ago
Freon-12, CF2Cl2, which has been widely used in air conditioning systems, is considered a threat to the ozone layer in the strat
Vilka [71]

Answer:

The root mean squared velocity for CF2Cl2 is  v_{rms}= 207.06 m/s

Explanation:

From the question we are told that

         The temperature is T = -65 ^oC = -65+273 = 208K

Root Mean Square velocity is mathematically represented as

      v _{rms} = \sqrt{\frac{3RT}{MW} }

 Where  T is the temperature

              MW is the molecular weight of gas

              R is the gas constant with a value of  R = 8.314 JK^{-1} mol^{-1}

For  CF2Cl2 its molecular weight is  0.121 kg/mol

     Substituting values

  v_{rms} = \sqrt{\frac{3 * 8.314 *208}{0.121} }

          v_{rms}= 207.06 m/s

5 0
3 years ago
Read 2 more answers
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