A student conducts an experiment and determines the density of zinc to be 7.560 grams per cubic centimeter. Determine the percent error of the student’s density calculation. Include the amount of significant figures and proper units.

You can still be friends with each other. you don't have to date since he likes someone else. just stick to being friends for now

Adialysis unit requires 78.5 l of water.the estimated digit is 5. 

Atp, shorthand for adenosine triphosphate, is the standard molecule for cellular enger in the human body. all motion and metabolic  processes  within the body begins with energy that is released from  atp, as its phosphate bonds are broken in cells through a  process  called hydrolysis.

B.1 - hydrogren-1 can only mean there is 1 neutron. it's obvious there is 1 proton or else it wouldn't be hydrogen, so they wouldn't put a number after it unless they were indicating the number of neutrons