The atomic mass of calcium is calculated by adding the mass (amount) of A) Protons and Electrons
B) Protons and Neutons
C) Electrons and Neutons
D) Protons and Protons​

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?

What is the molar mass of potassium nitrate, kno3