When a scientific theory has been tested and proved by the scientific community, it

becomes a law.

1) True

2) False

In what order should blood tubes be filled when drawing for multiple tubes? Order of draw?

What is the empirical formula for a compound if a sample contains 3.72g of P and 21.28g of Cl? -PCl5 - PCl3 - P2Cl10 - P2Cl 5

What is one advantage of using a computer over a graphing calculator? Computers are more useful for quick calculations. Computers are easier to transport to remote locations. Computers have lower power consumption.

The requirements of atoms to be able to participate in hydrogen bonding with a hydrogen atom include all of the following except A. atoms must not be able to closely approach the hydrogen. B. atoms must be electronegative. C.

How many atoms in 4.98 moles Al

You need to make an aqueous solution of 0.125 M barium chloride for an experiment in lab, using a 250 mL volumetric flask. How much solid barium chloride should you add?

Relative to the sum of the masses of its constituent nucleons, the mass of a nucleus is: greater the same smaller sometimes greater and sometimes smaller

Smallpox epidemic among Native Americans?

Energy stored in the bonds that hold together the atoms and molecules of all substances is called Energy stored in the bonds that hold together the atoms and molecules of all substances is called

Which of the following requires an oxidizing agent? Al yields Al3+ 2 O yields O2 Cl2 yields 2 Cl- Ag + yields Ag