An atom of silicon-30 contains 14 protons. How many electrons does it have?

What mass of co2 would be produced by the neutralization of 25.0 ml of 6.00m h2so4 using excess nahco3?

What is the pH of a solution that is 0.10 M formic acid and 0.0065 M formate (the conjugate base) ? Ka of formic acid = 1.77 x 10-4

Find the mass of 3.8 mL mercury in a thermometer. The density of Hg is 13.5 g/cm^3

In an experiment to determine if the height of a cake is determined by the temperature at which is cooked, measuring the height of the cakes is an example of an

g Solid sulfur hexafluoride evaporates when heated at atmospheric pressure rather than liquefying. What is the correct name of the type of phase transition that is represented by this process? a) This process is an example of vaporization.

Name the gases that catalytic converters remove from car exhaust

Who wrote the first modern chemical textbook?

Chemical formula for copper (ll) phosphate

In order to digest food, the human body requires

Calculate the gas constant, R, if 25.55 mL of hydrogen gas was collected at a barometric pressure of 0.987 atm and a temperature of 295 K. The vapor pressure of water at this temperature is 0.026 atm.