Explanation:
most of the x-rays are absorbed in thermosphere of earth's atmosphere
Answer:-
and 
Explanations:- In the first equation, the oxidation number of O is decreasing from 0 to -2 where as the oxidation number of H is increasing from 0 to +1. As the oxidation number is increasing for one element(H) and decreasing for other element(O), it is an oxidation-reduction reaction.
Second reaction is a double displacement reaction so there is no change to the oxidation numbers of the elements and hence it is not oxidation-reduction reaction.
In third reaction, the oxidation number of Al is increasing from 0 to +3 and the oxidation number of H is decreasing from +1 to 0. Here again there is an increase and decrease to the oxidation numbers of two elements, it is oxidation-reduction reaction.
fourth and fifth reactions are again double displacement reactions and so there is no change to oxidation numbers for any of the elements and they are not the oxidation-reduction reactions.
So, the only correct equations are
and
.
Answer:Yes it affects the conditions of the hair.
Explanation:most shampoos have pH values higher than the pH of the hair shaft of 3.6 and also higher than the pH of the hair scalp of 5.5. Therefore the usage of hair shampoo with pH values above 5.5 may likely increase the rate of friction which may cause hair breakage and facilitate hair tangling.
Explanation:
As we know that chloride ion is halogen. So it has seven valence electrons in its valence shell. Hence it gains one electron from others during chemical reaction to be stable. So Chloride ion have a negative charge of -1.
Hope it will help :)❤
The answer would be A because the chemical composition of the plant hasn't changed.