500 points! chemical eqautions ! click the link and do the work plzzz resend link to docx back to me in answers and ill create new question give link in comments and u answer for 500 point! : )
hurry this is chemical eqautions first come (and answers get points)

Carbon 14 is a naturally occurring stable

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?