A sample a liquid is found to have 7.525x10^22 atoms. How many moles of atoms is
this?

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li