Lead can be obtained by heating its oxide with carbon. The balanced equation for the reaction is 2PbO + C → 2Pb + CO2 Calculate the atom economy for the production of lead in this reaction. (relative atomic masses: C = 12, O = 16, Pb = 207 relative formula masses: PbO = 223, CO2 = 44) Give your answer to two significant figures.

What is the polyatamic ion of borate

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

Select the correct answer from each drop-down menu. describe what happens to a carbon-11 atom when it undergoes positron emission. the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons