Can i get some plz i'm not sure
which question can be answered by an experiment?
did an ice age kill off the mastodons?
what caused the extinction of the dinosaurs?
are all people susceptible to the hunta virus?
do sugar substitutes cause cancer?

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

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

In a chemical reaction, the final amount of the products is determined by the a. universal gas law b. law of definite proportions c. air pressure d. temperature e. none of the above me