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Ann [662]
3 years ago
7

Why do scientists use the scientific method?

Chemistry
1 answer:
Julli [10]3 years ago
5 0

Answer:

<h3><em>D</em></h3>

Explanation:

<h3><em>It </em><em>helps </em><em>determine </em><em>whether </em><em>an </em><em>idea </em><em>is </em><em>supported </em><em>by </em><em>evidence</em></h3>

<h3><em>hope </em><em>it </em><em>helps </em><em>please </em><em>follow </em><em>because </em><em>I </em><em>don't </em><em>have </em><em>any </em><em>followers </em><em>I </em><em>have </em><em>0</em><em> </em><em>followers</em></h3>
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A galvanic^cell consists of left ompartmcnt with a tin elcctrode in contact with 0.1 M Sn(NO_3)_2(aq) and a right compartment wi
lana66690 [7]

Answer:

Electrons will flow from left to right through the wire.

Pb^2+ ions will be reduccd to Pb metal.

The concentration of Sn2+ ions in the left compartment will increase.

Explanation:

Looking at the relative electrode potentials of the two metals

Sn= -0.14

Pb=-0.13

Tin is expected to function as the anode (left hand half cell) and lead as the anode (right hand half cell) tin oxidizes to sn^2+ hence its concentration increases on the left compartment while lead is reduced to ordinary lead metal on the right hand half cell . since oxidation occurs on the left hand side, electrons flow from left to right.

6 0
3 years ago
If stomach acid has a ph of 1.3, what is the pOH
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3 years ago
How many milliliters are in 22 mm3?
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8 0
3 years ago
How does maximum boiling azeotropic mixture is separated using fractional distillation?
Evgesh-ka [11]

Answer:

By heating the mixture to maximum boiling point and then the solution is distilled at a constant temperature without having a change in composition.

Explanation:

An azeotropic mixture is also called a constant boiling mixture and it is a mixture of two or more liquids whose proportions cannot be altered by simple distillation due to the fact that when an azeotropic mixture is boiled, the vapor has the same proportions of constituents as the unboiled mixture.

Now, maximum boiling azeotropic mixture are the solutions with negative deviations that have an intermediate composition  for which the vapor pressure of the solution is minimum and as a result, the boiling point is maximum. At that point, the solution will distill at a constant temperature without having a change in composition.

4 0
2 years ago
Which observation provided Albert Einstein the clue that he needed to explain the photoelectric effect?
vladimir1956 [14]

Answer:

Which observation provided Albert Einstein the clue that he needed to explain the photoelectric effect? Energy of electrons depends on light's frequency, not intensity. A change in which property of light will have no effect on whether or not the photoelectric effect occurs?

Explanation:

5 0
3 years ago
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