Which of the following describes the correct procedure to prepare 500. mL of 2.00 M Na2CO3(aq)? (The molar mass of Na2CO3 is 106 g/mol.)

How did planetesmals form planets? a. they broke apart into smaller chunks.b. they collided and stuck together.c. they cooled and pulled ice together.d. they began to rotate.

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology