In all atoms of bismuth the number of electrons must equal to

Dformation of a precipitate

Dis the best answer im sure it is it has to be im positive

Answerdecrease; intensify

When calculating percentage we need two numbers. one number represents total amount of certain thing and another number represents partial number of that thing. then we divide those two numbers.in this problem total amount represents total number of weeds growing on some surface. partial number represents chicory.percentage = partial / total * 100%percentage = 29 / 98 * 100%percentage = 29.6%our calculation is closest to answer b) so this is our correct answer.