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Klio2033 [76]
4 years ago
10

Can y'all help me with number 4

Chemistry
2 answers:
astraxan [27]4 years ago
6 0
I think the answer is A but i'm not sure
pogonyaev4 years ago
4 0
The answer is A 6o2, 6co2
You might be interested in
Please help, I’m a bit confused, lol
Mashutka [201]

Explanation:

option A skeleton system is correct option

hope this helps you !

4 0
2 years ago
Give the name of the following molecule. A compound with a total of 10 carbons with one double bond and the rest single bonds. T
soldier1979 [14.2K]
Answer:
           The IUPAC name of compound is 6-Ethyl-2-Octene.

Explanation:

First of all draw a straight chain of 8 carbon atoms.

Make a double bond between carbon number 6 and 7 numbering from left.

Add ethyl group at position 3 starting from left.

The structure sketched is attached below,

According to rules the longest chain containing a double bond is selected. Numbering is started from the end to which double bond is nearer. So, in our case the double bond starts at carbon 2, hence parent name of compound is 2-Octene. Then the substituent at position 6 is named.

5 0
3 years ago
At a certain temperature a 42.55% (v/v) solution of ethyl alcohol, C2H5OH, in water has a density of 0.9027 g mL-1. The density
swat32

Answer:

a. 7.187M.

b. 7.962m.

c. 0.1846

Explanation:

This solution contains 42.55mL of ethyl alcohol in 100mL of solution.

a. Molar concentration = Moles ethyl alcohol / L solution:

<em>Moles ethyl alcohol -Molar mass: 46.07g/mol-</em>

42.55mL * (0.7782g/mL) * (1mol / 46.07g) = 0.7187 moles ethyl alcohol

<em>Liters solution:</em>

100mL * (1L / 100mL) = 0.100L

Molar concentration: 0.7187mol / 0.100L = 7.187M

b. Molal concentration: Moles ethyl alcohol (0.7187moles) / kg solution

<em>kg solution:</em>

100mL * (0.9027g / mL) * (1kg / 1000g) = 0.09027kg

Molal concentration: 0.7187mol / 0.09027kg = 7.962m

c. Mole fraction: Moles ethyl alcohol / Moles ethyl alcohol + moles water

<em>Moles water: -molar mass: 18.01g/mol-</em>

Volume water = 100mL - 42.55mL = 57.45mL

57.45mL * (0.9949g/mL) * (1mol/18.01g) = 3.1736 moles water

<em>Moles fraction:</em>

0.7187 moles ethyl alcohol / 0.7187 moles ethyl alcohol+3.1736 moles water

= 0.1846

4 0
3 years ago
A supersaturated solution holds less solute than it normally can.
NeTakaya

A supersaturated solution holds less solute than it normally can is false. It actually contains more solute that it normally can. Having less solute than it normally can is an unsaturated solution. And when it has the exact amount of solute, it is a saturated solution.

7 0
4 years ago
1)
MAXImum [283]

Answer:

Sulfuric acid + Zinc = reactant

Zinc sulfate + hydrogen = product

Lead oxide + carbon = reactant

lead + carbondioxide = product

Explanation:

Chemical equation:

Sulfuric acid + Zinc → Zinc sulfate + hydrogen

H₂SO₄ + Zn → ZnSO₄ + H₂

In this reaction sulfuric acid and zinc react to produce the zinc sulfate and hydrogen. That's why sulfuric acid and zinc are reactant. While zinc sulfate and hydrogen are products.

2nd reaction:

Lead oxide + carbon   →  lead + carbondioxide

2PbO + C →  2Pb + CO₂

In this reaction Lead oxide and carbon  react to produce the lead and carbondioxide. That's why Lead oxide and carbon are reactant. While lead and carbondioxide are products.

3 0
3 years ago
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