Two pieces of silk have an electric charge after being rubbed on a piece of amber. what will happen when the two silk pieces are brought close together?
a. they will repel one another.
b. they will attract one another.
c. they will transfer their electrons from one to the other.
d. they will not affect one another.

Five students had to answer the question how are elements arranged in a periodic tabledamon: i think the elements are arranged by increasing massflo: i think the elements are arranged according to their properties sienna: i think the elements are arranged by when their discovers kyle: i think the elements are arranged according to how common they areglenda: i don't agree with any of themwho is right

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

How many liters of hydrogen gas will be produced at stp from the reaction of 7.179×10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2