The molecule having smallest bond angle is :
(1) ncl3 (2) ascl3 (3) sbcl3 (4) pcl3

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Evaluate the following expression 1/3^2

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form