A. 24.5 g of ammonia NH3 = how many moles of ammonia?

. b How many molecules of ammonia is that from 22. a.?

Special substances in cells that absorb or release hydrogen ions to keep the ph value constant are called

Which particle of the atom has a negative charge? a. proton b. neutron c. electron d. nucleus

The hydrostatic pressure that makes a diluted solution diffuse solvent molecules across a semipermeable membrane into a concentrated solution is known as A. osmotic pressure. B. ambient pressure. C. absorption pressure. D. adsorption pressure.

Convert this to metric units 0.000238 m to cm

What is the correct calculation for voltage, if the resistance is 3 ohms and the current is 4 amps?

What is the name of the following compound Pb (CH3COO) 4

The random movement of molecules in a solvent causes which of the following in a cube of solid solute?

How to revise in just 1 whole day for chemistry combined science is it possible to get a good grade

Define oxidation and reduction in terms of electron transfer

1. Which metal is the most reactive? How do you know this?