A configuração eletrônica de um átomo neutro no estado fundamental é 1s2 2s2 2p6 3s2 3p5. O número de orbitais vazias remanescente no nível principal M é: a)0 b)1 c)5 d)6 e)10

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.

When the mercury level in a barometer decreases that atmospheric pressure has

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.