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cupoosta [38]
3 years ago
8

Why do lunar and solar eclipse not happen every two months?

Chemistry
1 answer:
algol [13]3 years ago
5 0
Because they are rare and don’t happen all the time
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Which one allows you to obtain the most precise volume? Circle one.the first one on the right because it's too ee and also helps
yanalaym [24]

Answer:50 ml ☺️

Explanation:

7 0
2 years ago
You set up an experiment to determine the conditions needed to form the gemstones with the most clarity. You gather data from 5
Andreyy89
I’m in chemistry too. Giving this my best guess I’d say
Independent: Gem Mines
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6 0
3 years ago
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What would be the major product obtained from hydroboration–oxidation of the following alkenes?
zmey [24]

Answer:

a. 3-methylbutan-2-ol

b. 2-methylcyclohexan-1-ol

Explanation:

For this reaction, we must remember that the hydroboration is an <u>"anti-Markovnikov" reaction</u>. This means that the "OH" will be added at the <em>least substituted carbon of the double bond.</em>

In the case of <u>2-methyl-2-butene</u>, the double bond is between carbons 2 and 3. Carbon 2 has two bonds with two methyls and carbon 3 is attached to 1 carbon. Therefore <u>the "OH" will be added to carbon three</u> producing <u>3-methylbutan-2-ol</u>.

For 1-methylcyclohexene, the double bond is between carbons 1 and 2. Carbon 1 is attached to two carbons (carbons 6 and 7) and carbon 2 is attached to one carbon (carbon 3). Therefore<u> the "OH" will be added to carbon 2</u> producing <u>2-methylcyclohexan-1-ol</u>.

See figure 1

I hope it helps!

8 0
3 years ago
Which of the following is not conserved in a chemical reaction?
mixer [17]
Mass is not conserved in chemical reactions. Mass is therefore never conserved because a little of it turns into energy in every reaction
6 0
2 years ago
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Two descriptions about physical quantities are given below:
gladu [14]

Answer:

Quantity A is weight and Quantity B is mass

Explanation: weight has same unit as force. Mass is the quantity of matter present in a body or object

8 0
3 years ago
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