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slavikrds [6]
3 years ago
13

7.

Chemistry
1 answer:
natulia [17]3 years ago
6 0

Answer:

the answeer

Explanation:

guy its 48.39 precent

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Got this really tricky extra credit question I can't figure out. Anyone want to give #24 a try?
agasfer [191]
Where is the pic at ???????/????
4 0
3 years ago
Calculate the volume in mL of 1 mole of pure ethanol
Tamiku [17]
The units of density are g/ml. If you find the grams of 1 mol of ethanol (with the molecular weight), you can then divide by the density to get the ml of ethanol.

g*(ml/g)=ml
4 0
4 years ago
Which requires more heat to warm from 22.0°C and 85.0°C, 45.0 g of water or 200. g of aluminum metal?
stich3 [128]

Answer:

The answer to your question is Aluminum

Explanation:

We need to warm from 22°C to 85°C

a) 45 g of water                      

b) 200 g of aluminum             Cp = 0.905 J/cal°C

a) Water

Q = mCpΔT

Q = (45)(1)(85 - 22) = 45(63) = 2835 cal

b) Aluminum

Q = (200)(0.905)(85 - 22) = 114030 cal

5 0
3 years ago
When two moles of ethane react completely with oxygen, how many moles of carbon dioxide will be produced?A. 2.B. 4.C. 8.D. Unkno
babymother [125]

Answer:

Option B.

Explanation:

As any reaction of combustion, the O₂ is a reactant and the products are CO₂ and H₂O. Combustion reaction for ethane is:

2C₂H₆  +  7O₂   →   4CO₂  +  6H₂O

So 2 moles of ethane react with 7 moles of oxygen to make 4 moles of dioxide and 6 moles of water.

Then 2 moles of ethane will produce 4 moles of CO₂

6 0
3 years ago
15.Vicinal coupling is:A)coupling between 1H nuclei attached to adjacent C atoms.B)coupling between 1H nuclei in an alkene.C)cou
timurjin [86]

Answer:

A)coupling between 1H nuclei attached to adjacent C atoms.

Explanation:

The word ‘vicinal’ in chemistry means three bonds from the functional groups. The two functional groups are in a relationship with the atoms in adjacent position to them.

The 1H nuclei consists of two Hydrogen nucleus which acts as the functional groups. They are however attached and in a relationship with the adjacent C atoms. This makes option A the right choice.

6 0
4 years ago
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