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andreyandreev [35.5K]
3 years ago
11

My experiment is:

Chemistry
1 answer:
Dmitriy789 [7]3 years ago
8 0
The independent variable is the amount of salt added to the ice. The dependent variable is the amount of time it takes for the ice to completely melt.
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The fur on an arctic polar bear appears white all year. The color of the fur is an example of
Andru [333]

Answer:

It would be B!

Explanation:

Since white fur is a form of camouflage, B would be the correct answer.

3 0
3 years ago
Doing an experiment about electroplating, you attempt to coat silver in gold using a basic electroplating set-up. You take the m
Elan Coil [88]

Answer:

it’s mass was greater than when it started

Explanation:

When a metal is coated with another metal, the plating metal deposits on the plated metal. Usually, the plating metal functions as the anode while the plated metal functions on the cathode. The anode metal is oxidized and reduced at the cathode and become deposited on the cathode material. This increases the mass of the cathode. Hence the mass of the silver/gold product is greater than the mass of silver at the beginning of the electroplating process.

3 0
3 years ago
What do you think might be some disadvantages of solar energy?
telo118 [61]

Answer:

Cost

Explanation:

The cost of purchasing a solar system is high so it serves as a great disadvantage.

8 0
3 years ago
Read 2 more answers
In experiment 6 we will perform a Fischer Esterification (Vollhardt, chapter 9-4 and 19-9). Suggest what could happen if you wer
Dmitrij [34]

Answer:

Acid-Catalyzed Ester Hydrolysis

Explanation:

Fischer Esterification is a reversible reaction and the Le Châteliers principle can be used for the reaction to be completed. For the reverse reaction of Fischer Esterification, using the hydrolysis of ethyl ethanoate, the steps involved are:

1) An hydrogen ion is added to the ester and one of the lone pairs on the oxygen double-bonded to the carbon atom takes the hydrogen ion.

2) The lone pairs on the oxygen of a water molecule takes the positive charge on the carbon atom.

3) The hydrogen ion is transferred from one oxygen atom to another.

4) Then an ethanol molecule is released (one of the products).

5) Reaction with a water molecule releases hydrogen from the oxygen and the other product (ethanoic acid) is formed.

5 0
3 years ago
3. Calculate the volume, in mL, of 100.0 g of alcohol, if the density is 0.79 g/mL.
Naya [18.7K]

Answer:

The answer is

<h2>126.58 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

<h3>volume =  \frac{mass}{density}</h3>

From the question

mass of alcohol = 100 g

density = 0.79 g/mL

The volume is

volume =  \frac{100}{0.79}  \\  = 126.58227848...

We have the final answer as

<h3>126.58 mL</h3>

Hope this helps you

4 0
4 years ago
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