What is the valency ? write the valencies of the calcium, iron, hydroxyh ,nitrate

(a):Valency is the measure of the capacity of an atom of a single element to react and combine with particular numbers of atoms of another element.

(b):

Valency of calcium:+2

Valency of Iron:Iron exhibits 2 valence states of +2 and +3.

Valency of hydroxl:-1

Valency of Nitrate:-1

Explanation:

the child will have heterozygous dominant chromosomes as characters of his father are dominant over the characters of his mother.

the child is heterozygous

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)