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3 years ago

What 3 things will you do to dissolve a solid (salt) faster in a liquid (water)

Chemistry

1 answer:

Dmitriy789 [7]3 years ago

6 0

Answer:

There are three ways to make solids dissolve faster: Break the solute into smaller pieces. Stir the mixture. * Heat the mixture.

Explanation:

Substances can dissolve in water three ways—by dissociation, dispersion, and ionization.

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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 "anti-Markovnikov" reaction. This means that the "OH" will be added at the least substituted carbon of the double bond.

In the case of 2-methyl-2-butene, 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 the "OH" will be added to carbon three producing 3-methylbutan-2-ol.

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 the "OH" will be added to carbon 2 producing 2-methylcyclohexan-1-ol.

See figure 1

I hope it helps!

8 0

3 years ago

Which statement best describes the relationship between observations and conclusions? A. Observations are based on Conclusions B

irga5000 [103]

Answer:

B. Conclusions are based on observations

Explanation:

7 0

3 years ago

Compounds can not be separated by Response area means. Separating a compound requires a Response areareaction.

Aleks04 [339]

Answer:

use vinager

Explanation:

I did this heh :/

7 0

3 years ago

Describe the organism that scientists believe was responsible for changing the composition of the early atmosphere. What is it c

lara31 [8.8K]

The early atmosphere was probably mostly carbon dioxide, with little or no oxygen. The proportion of oxygen went up because of photosynthesis. The photosynthesis was conducted from tiny organisms.
cyanobacteria, or blue-green algae. 
They used sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen. This change to the atmosphere was very important because the breathable air we enjoy today was created.

4 0

3 years ago

Read 2 more answers

A speed time graph shows that a car moves at 20 m/s for 15s. The car's speed steadily decreases until it comes to a stop at 40s.

ladessa [460]

0s to 15s: constant speed/zero acceleration
15s to 40s: constant gradient, therefore constant deceleration

4 0

3 years ago