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pantera1 [17]
4 years ago
15

Help me with these two questions

Chemistry
1 answer:
Nadya [2.5K]4 years ago
3 0

Answer:

The coefficients in order are 2, 1, 1 for the first one and 1, 3, 2 for the second one. Hope this helps!

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2c2h2(l) 5o2(g) yeild 4co2(g) 2h2o(g) if the acetylene tank contains 37.0 mol of c2h2 and the oxygen tank contains 81.0 mol of o
Murrr4er [49]

2C2H2(l)  +5O2(g)→ 4Co2(g)  + 2H2O

The   limiting  reactant  for reaction above is O2


<u><em>explanation</em></u>

 The limiting reagent is determined using mole ratio  of both reactant.

 that  is the  mole ratio  of  C2H2:O2  which is  2:5 .

 The mole ratio above  implies  that 37.0 mole  of C2H2   needs  37.0 moles  x5/2=92  moles of  O2.


<em>Since the available moles of O2  was 81.0 mole  and 92  moles  are  required to completely  react with  C2H2</em><em> ,</em> <u>O2   is  the limiting reagent.</u>

6 0
3 years ago
What experiment did J. J. Thomson do?
scoundrel [369]

Answer:

A. He sent a cathode ray between electrically charged metal plates

5 0
3 years ago
Carbon atoms can bond together in straight chains branched chains or rings. true or false
FrozenT [24]

Answer:

The answer to your question is: True

Explanation:

Carbon compounds

Aliphatic       saturated         only have single bonds

                     unsaturated    could have double or triple bonds

Ciclic            are skeletons of carbons that forms cycles

Aromatic      the unit of this compounds is benzene, which is a cycle of

                    6 carbons.

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Which of the following elements has electrons in the 3d sublevel?
ch4aika [34]

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fe is the answer

Explanation:

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