DESPERATE WILL GIVE BRAINLIST AND THANKS What does DNA contain?

the chromosomes that build proteins

the coded blueprint for life

the ability to translate RNA code

the factors for heredity called alleles

Which statement describes james chadwick’s discovery.

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.