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Mars2501 [29]
3 years ago
9

Free.... f..... r.... e.... e... FREE POINTS! (and brainliest ofc) Alright two more after this guys

Chemistry
2 answers:
Illusion [34]3 years ago
8 0

Answer:

o.k

Explanation:

alexgriva [62]3 years ago
5 0

Answer:

rawr

Explanation:

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A student was performing a separation of a mixture of organic compounds. The final step of the process involved a filtration of
Ahat [919]

Answer:

1) No

2) The solvent contaminated the analyte

3) The solvent should be evaporated properly before washing and drying the analyte

Explanation:

During separation of organic compounds, solvents are used. These solvents are able to contaminate the analyte and lead to a large difference in melting point of solids obtained.

However, the error can be minimized by evaporating the solvent before washing, drying and melting point determination of the solid.

8 0
3 years ago
Consider the reaction.
gayaneshka [121]
<span>The answer is (D)-when the rate of the forward and reverse reactions are equal.</span>
6 0
3 years ago
Why does food have potential energy?
Savatey [412]

Answer:

So that if we feel weak, energy is released through it so we can do work and do stuff like walk or think. It's like stored energy that can do things for the future.

Please give brainliest if it helped.

3 0
3 years ago
Read 2 more answers
The density of copper is 8.94 g/cm3. An irregular shaped sample of metal is 14 g and displaces a volume of 2.98 mL. (a) Find the
Vedmedyk [2.9K]

Explanation:

<h2>(a).</h2>

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass of metal = 14 g

volume = 2.98 mL = 2.98 cm³

It's density is

density =  \frac{14}{2.98}  \\  = 4.69798657...

We have the answer as

4.70 g/cm³

<h2>(b).</h2>

The metal is not copper since it's density is less than that of copper.

Hope this helps you

8 0
3 years ago
What is common about the elements of a period? Select all that apply. They have the same number of electron energy levels. They
Ann [662]

Answer:

They have the same number of electron energy levels.

They transition from a metal to noble gas.

Explanation:

Periods in the periodic table of elements refer to elements in the same row. All the elements in a certain row of the periodic table;

have the same number of electron energy levels.

transition from a metal to noble gas.

4 0
3 years ago
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