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Svetlanka [38]
3 years ago
10

Name the following alkanes: CH, - CH, -CH, - CH, 1

Chemistry
1 answer:
VashaNatasha [74]3 years ago
5 0

Answer:

choo choo train

Explanation:

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Under standard-state conditions, which of the following half-reactions occurs at the cathode during the electrolysis of aqueous
Slav-nsk [51]

Answer:

The following reaction will occur at cathode:

Ni^{+2}(aq)+2e--->Ni(s)

Explanation:

The two half reaction during electrolysis of aqueous nickel sulfate will be

a) anode reaction :

Water will undergo oxidation and will evolve oxygen gas at anode as shown in the given reaction:

2H_{2}O(l) ----> O_{2}(g) + 4H^{+}(aq) + 4e

b) Cathode reaction: The reduction of Nickel ion will occur by gain of two electrons as shown in the given equation:

Ni^{+2}(aq)+2e--->Ni(s)

Thus the overall reaction will be:

2H_{2}O(l) + 2Ni^{+2}----> O_{2}(g) + 4H^{+}(aq) + 2Ni(s)

6 0
3 years ago
If two students in a lab are asked to calculate the density of a block with a mass of 31.0 g; they are not told how many digits
Arada [10]

We can see here that the both measurements are accurate. This is the true because the both values are in the correct number of significant figures.

<h3>What is density?</h3>

The term density has to do with the ratio of the mass to the density of the object. We know that the accuracy of a measurement has a lot to do with the number of significant figures in the measurement. In this case, we are told that two students in a lab are asked to calculate the density of a block with a mass of 31.0 g; they are not told how many digits to round their measurements. Student A finds length to be 2 cm width to be 4 cm and height 8 cm. Student B finds the length to be 2.65 cm, width to be 4.20 cm, and height to be 8.35 cm.

For the first student, the density is obtained as;

Density = mass/ volume

= 31.0 g/ 2 cm * 4 cm *  8 cm

= 0.5 g/cm^3

For the second student;

Density = mass/ volume

= 31.0 g/2.65 cm * 4.20 cm * 8.35 cm

= 0.33 g/cm^3

Learn more about density:brainly.com/question/15164682

#SPJ1

3 0
1 year ago
What is the most commonly preferred pH range for soil?
Tems11 [23]

Answer:

Between 5.5 to 7.5

The optimum pH range for most plants is between 5.5 and 7.5

3 0
2 years ago
Read 2 more answers
What is the basis for the classification of organic compounds?​
frutty [35]

Answer:

So compound are classified on two bases.

They are structure and Function.

4 0
3 years ago
Which of the following would have the highest lattice energy?
Ilia_Sergeevich [38]

Answer:

MgN3

Explanation:

In MgN3 the charge on the ionic species is greater than NaCl. So,ionic interactions in MgN3 will be stronger

4 0
3 years ago
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