(a) Denise and her friend, Toya, are traveling through space. During their walk on the moon, Denise takes out an iPod and a flashlight. In the space below, describe whether or not Toya can see the flashlight and hear the iPod. Provide explanations for both objects.

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.

може ли да зареждате повече информация, моля

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b