The temperature of a 15 g sample of lead metal increases from 22 ºC to 37 ºC upon the addition of 29.0 J of heat. What is the specific heat of lead (in J/gK)?

When calcium carbonate is heated, CO2 (g) is produced according to the following balanced equation: CaCO3 (s) → CaO + CO2 (g) If 5.00 g of CaCO3 (s) is heated, what volume (in L) of CO2 (g) would be produced when collected at a temperature of 27.0 ºC and a pressure of 0.920 atm?

What is the chemical formula of the compound, lead (II) carbonate?

A certain pain medication (the only known legal remedy to enduring a 75 min CHM 113 lecture) is a compound composed entirely of C, H and O. It contains 75.69 % C, 8.80 % H, and 15.51 % O by mass. What is the empirical formula of this compound?

The element Titotium (Tt) was recently discovered in a remote village in Mexico. Tt is composed of two naturally occurring isotopes: 295Tt and 301Tt, with atomic masses of 294.969 and 301.002 g/mol respectively.  295Tt is the most common isotope, with a natural abundance of 63.84%.  Which entry below should be used when Titotium is added to the Periodic Table later this year?

How many moles of potassium ions are there in 15.2 g of the ionic compound, potassium phosphate (K3PO4)?

What is the name of the compound, P2O5?

Of the following elements, which has the highest (most negative) electron affinity?

The unit of force in the English measurement system is

Consider the following molecular-level process: Which of the follow processes could this picture represent?