Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?

Idon't really understand this can you me and show your work.☺☺[ chemistry b] subject [ electron transfer in lonic bonds]grade( 12)

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume