Calcium carbonate decomposes at high temperatures to form carbon dioxide and calcium oxide. CaCO3 --> CO2 + CaO (YOU MUST BALANCE FIRST)

Determine how many grams of calcium carbonate I will need to form 3.45L of carbon dioxide? Assume the pressure is 1 atm and the
temperature is 273K.

g CaCO3 (3 sig figs)

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit