How many moles of Zn have 7.35 * 10 ^ 26 atoms of Zn ? Select one : a. 1220 b . 1.12e25 18.7 d . 4.42e50

The pressure inside a hydrogen-filled container was 2.10 atm at 21 ? c. what would the pressure be if the container was heated to 92 ? c ?

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

How does concentration affect reaction rate