Chemist determined by measurements that 0.015 moles of nickel participated in a chemical reaction. Calculate the mass of nickel that participated in the chemical reaction. Round your answer to 2 significant digits.

Vitamins are classified according to A. their ability to fight disease. B. their coenzymes. C. their functions in the body. D. their solubility in water and fat.

Who was the person who investigated the personal life of the president but was originally supposed to be investigating Whitewater? a. George Bush c. Al Sharpton b. Newt Gingrich d. Kenneth Starr

Electron configuration of Phosphorus

How many elements are in NH3

I have two shells joined with a hinge, and I use a siphon to filter water to feed myself. To which group of animals do I belong?

Which of these is a covalent compound? 1. AICI3 2. CO 3. MgO 4. LiCI

What is a protein used for

Atoms of the halogen family typically steal two electrons from other atoms when they react true or false

Looking at the periodic table, which group consists of elements that will not form an acid when combine with hydrogen? A) radon, neon, calcium B) neon, bromine, barium C) beryllium, iodine, krypton D) lithium, potassium, fluorine

Mixtures have (exact, relative) amounts of the same substances