Answer: The correct representation of the element with 15 electrons and 16 neutrons is phosphorus (P).
Explanation:
30 miles
B.
60 miles
C.
120 miles
D.
150 miles
i need help and please answer
b. metalloid.
c. transition metal.
d. alkaline-earth metal.
Answer is (A) - halogen.
Salts are inorganic and ionic compounds which are made from two ions. One is cation which has a positive charge and other one is anion which carries a negative charge. The overall charge of the salt is zero means the salt is neutral.
Alkali metals form salts with halogens like F, Cl, Br, and I. Here,the cation is alkali metal and halogen is the anion.
A salt could be formed by an alkali metal and a halogen. The answer is letter A. A halogen is example of nonmetal. The answer is letter A. When compounds containing halogens they are called salts thus the name “salt – former”. Halogen consists of Fluorine, Chlorine, Bromine, Iodine, Astatine.
HNO2 -> H+ + NO2-
HA + h20 -> A- + H+ + h20
BOH + h20 -> B+ + OH- + H20
Answer : The correct option is, (4)
Explanation :
Strong acid : Strong acids are those acids which are completely dissociates into ions in water. It dissociates into hydrogen ion and an anion.
Strong base : Strong base are those base which are completely dissociates into ions in water. It dissociates into hydroxide ion and a cation.
In all the given options, option (4) equation shows the complete dissociation of a strong base.
While the other options shows the complete dissociation of an acid.