Answer:
E. Gain of electrons
Explanation:
A reduction reaction is one part of the two concurrent reactions that take place in a redox (reduction-oxidation) reaction.
During reduction, an atom gains electrons from a donor atom, and it's oxidation number becomes smaller.
Option A is wrong because reduction does not increase oxidation state nor are neutrons involved
Option B is wrong because reduction is not a nuclear reaction (does not involve the nucleons)
Option C is wrong because reduction leads to reduction in oxidation state
Option D is wrong leads to a reduction in oxidation state when electrons are gained
Option E is correct because reduction involves gain of electrons
Primary pollutants affect the world more than secondary pollutants
Answer:
True
Explanation:
DON'T GIVE BRAINLIEST TO THE FILE EXPLOITER!!!!
There are 2 Ca, 4 H (2*2) and 4 O (2+2) on the left hand side. So there should be the same number of atoms 2Ca and 4(O+H) on the right hand side. The reaction is a synthesis (making something new), rather than a decomposition (destroying something).
The answer is Two molecules of Ca(OH)2 should be produced during the synthesis reaction.
Answer:
Fractional Distillation could be used to:
- Obtain the different fractions of a crude which may have more uses and be more useful.
- Obtain ethanol from a mixture of ethanol and water.
Fractional Distillation is used to obtain one substance from a mixture. It depends on the boiling points of the substances.
