Scientific laws describe natural relationships that have been tested repeatedly and are generally accepted as universal and true. Which of the following describes a scientific theory? A.
the outcome of a single experiment
B.
a prediction about what will happen during a scientific investigation
C.
a proposed explanation for natural phenomena, supported by evidence
D.
a proven fact about a natural phenomena

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.