Laura is separating a mixture of sand and water by decanting. She lets the sand all settle to the bottom of the container and then slowly pours the water into a new, clean container. This leaves all the sand behind in the bottom of first container
Why is decanting an effective method of separation for water and sand?
OA. Water and sand have similar properties.
ОВ.
Water and sand have different densities.
OC.
Water and sand are both pure substances
OD
Water and sand have different colors.

Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.

Identify one disadvantage to each of the following models of electron configuration: dot structures arrow and line diagrams written electron configurations type in your answer below.

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f