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Contact [7]
2 years ago
12

5. When sodium, a metal, is added to water, it reacts vigorously to form two new substances

Chemistry
1 answer:
Nuetrik [128]2 years ago
3 0
A. It is the reaction of an alkali metal with water.
B. Hydrogen , the test for hydrogen goes out with a squeaky pop.
C. Sodium + water —> sodium hydroxide + hydrogen
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Explain why lattice energy is the key to the formation of a salt
Furkat [3]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.


Lattice energy is the key to the formation of a salt because without that energy it wouldn't form, it makes the overall process spontaneous
4 0
3 years ago
Discuss the significance of assigning an atomic mass of exactly 12 amu to the carbon-12 isotope.
evablogger [386]

Answer:

Cabon-12 has same average atomic weight and mass number.

Explanation:

carbon-12 has average atomic weight 12 amu and mass number of 12.

amu represents average of mass of a nucleon.

As carbon-12 has same average atomic mass and mass number therefore carbon-12 is a good standard to determine average mass of a nucleon.

Again, abundance of carbon-12 isotope is almost equal to 99%. Therefore fluctuation of average atomic weight from 12 amu is very very low.

So, carbon-12 is taken as a standard to determine mass of a nucleon.

Hence atomic mass of carbon-12 is 12 amu.

5 0
3 years ago
Which formula shows a correct representation of the combined gas law?(1 point)
weqwewe [10]

Answer:

D

Explanation:

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8 0
2 years ago
How much water vapor can a cubic meter of air hold at 25 degrees celcius
Thepotemich [5.8K]
I think you might find your answer here https://answers.yahoo.com/question/index?qid=20121101101721AAeZyHE
5 0
2 years ago
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Spell out the full name of the compound.
Talja [164]

Answer:

2–methyl–3–propylheptane.

Explanation:

The name of the compound can be obtained as follow:

1. Identify the functional group of the compound.

2. Determine the name of the compound by determining the longest continuous carbon chain.

3. Identify the substituent group attached.

4. Locate the position of the substituent group by giving it the lowest possible count. Where there are two or more different substitutent group attached to the compound, name them alphabetically.

5. Name the compound by combining

the above steps.

Thus, we can name the compound as follow:

1. The compound has only single bond. Therefore, the compound is an alkane.

2. The longest continuous carbon chain is 7. Therefore, the parent name of the compound is heptane.

3. The substitutent groups attached are:

Propyl i.e –C3H7

Methyl i.e –CH3

4. The substituent groups are located at:

Propyl i.e –C3H7 is located at carbon 3.

Methyl i.e –CH3 is located at carbon 2.

5. The name of the compound is:

2–methyl–3–propylheptane.

6 0
2 years ago
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