The element Z consists of three isotopes with masses of 79.13, 80.13, and 81.13 amu. These three isotopes are present in nature to the extent of 24%, 52%, and 24% respectively. Calculate the average atomic mass of element Z.

Monkeys and bats have similar bone structure in their forelimbs. however, monkeys have longer forelimbs to use for climbing and swinging in trees. bats have shorter forelimbs to use for flight. which term best describes how monkey and bat forelimbs are related to each other? a. homologous b. embryonic c. analogous d. vestigial

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles

What is the correct lewis dot structure for arsenic?