Chem (: how many grams do 1.3 x 10^21 atoms of sodium weigh?

How does concentration affect reaction rate

Scientists have developed an explanation of a phenomenon from several verified hypotheses. the explanation has been confirmed through numerous experimental tests.which option best describes this explanation? a. scientific lawb. research questionc. hypothesisd. scientific theory

In ccl4 is there a certain length that the main atom carbon is a certain distance from the chlorine’s?