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lorasvet [3.4K]
3 years ago
9

Which is the following is correct pair?

Chemistry
1 answer:
zhuklara [117]3 years ago
7 0

Answer:

answer is C

He is a noble gas

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A 1.00 L sample of a gas at a pressure of 1.000atm is compressed to 0.25 L at a constanttemperature. What is the new pressure of
lord [1]

Answer:

<h3>The answer is 4 atm </h3>

Explanation:

The new pressure can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we are finding the new pressure

P_2 =  \frac{P_1V_1}{V_2}  \\

From the question we have

P_2 =  \frac{1 \times 1}{0.25}  =  \frac{1}{0.25}  \\

We have the final answer as

<h3>4 atm </h3>

Hope this helps you

5 0
3 years ago
Propenoic acid is an unsaturated carboxylic acid. Describe how you could show
Anestetic [448]

Answer:

Tests for unsaturation involves addition across the multiple bonds in the unsaturated compound.

Explanation:

In organic chemistry, we define an unsaturated compound as any compound that contains a double or triple bond. These multiple bonds are also known as pi bonds.

There are two major tests for unsaturation which shall both be discussed here.

The first test for unsaturation is by the use of bromine water. The unknown sample is passed through a solution of bromine water which normally appears reddish brown. The bromine water becomes decolorized due to addition of bromine across the multiple bond. This is a standard test for unsaturation.

Secondly, unsaturated compounds decoulourize a solution of potassium permanganate when passed through it. This alone can not be used as a distinctive test for unsaturation.

Propenoic acid will give a positive test to the both reagents showing that it contains multiple bonds, in this particular instance, a double bond.

4 0
3 years ago
The carbon atom has a total of _________ electrons. A.6 B.4 C.2 D.8
denis23 [38]

Carbon has A. 6 atoms

5 0
3 years ago
Read 2 more answers
Calculate the energy of a photon having a wavelength of 7.71 x 10^-5 m.​
Bad White [126]

Answer:

Calculate the energy of a photon having a wavelength of 7.71 x 10^-5 m.​

Explanation:

5 0
3 years ago
Write a balanced equation for the following:
Ket [755]

(ANS1)— P4 + 5O2 ---> 2P2O5

(ANS2)— C3H8 + 5O2---> 3CO2 + 4H20

(ANS3)— Ca2Si + 4Cl2 ---> 2CaCl2 + SiCl4

7 0
3 years ago
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