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Marina CMI [18]
3 years ago
14

Under what circumstances will a scientific theory be changed or discarded

Chemistry
2 answers:
VMariaS [17]3 years ago
7 0

If new evidence or observations falsify a scientific theory, the theory will have to be changed to adapt to the new data or just discarded altogether.

Mandarinka [93]3 years ago
6 0

If new evidence or observations falsify a scientific theory, the theory will have to be changed to adapt to the new data or just discarded altogether. yes

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Which is the balanced single displacement reaction between Aluminum (Al3+) and Copper Sulfate (Cu2+(SO4)2-)
Aliun [14]

Answer:

The balanced single displacement reaction between aluminum and copper sulphate is as follows.

2Al(s)+3CuSO_{4}(aq)\rightarrow Al_{2}(SO_{4})_{3}(aq)+3Cu(s)

Explanation:

The given ions are as follows.

Al^{3+}- Aluminium ion and copper sulfate ion.

Single displacement reaction occurs one element replaces another element.

Hence, the balanced chemical reaction is as follows.

2Al(s)+3CuSO_{4}(aq)\rightarrow Al_{2}(SO_{4})_{3}(aq)+3Cu(s)

<u>Oxidation half reaction:</u>

Al\rightarrow Al^{3+}+3e^{-}

Aluminium loses three electrons.

<u>Reduction half reaction:</u>

<u>Cu^{2+}+2e^{-}\rightarrow Cu(s)</u>

Copper gain three electrons.

4 0
3 years ago
What is FALSE about nitrogen gas and carbondioxide?
Umnica [9.8K]

Answer:

4

Explanation:

both are gases, both are compounds , they are nonmetal so that leaves 4

5 0
3 years ago
Why is it impossible for a solution to become both more basic and more acidic at the same time?
elena55 [62]

An increase in H+ concentration will decrease OH- concentration is the

reason why it's impossible.

<h3>What is an Acidic and Basic compound?</h3>

An acidic compound has the presence of H+ ions in them while basic

compounds have the presence of OH- ions.

In a solution , as the number of Hydrogen ions increases, it leds to a

corresponding decrease in the Hydroxide ions which is the reason why

they can't coexist at the same time.

Read more about Acidic and basic compounds here brainly.com/question/4046668

4 0
2 years ago
Read 2 more answers
Why are chemical sanitizers ineffective in killing microbes present in cracks and crevices?
Strike441 [17]
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3 years ago
Chemical bonds contain energy that can be released when they are broken. True False
faust18 [17]
The answer ox Falseeeeeeee......
7 0
2 years ago
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