Lead has a density of 11.3 g/cm3 and a mass of 282.5 g. what is its volume? a. 2.5 cm3 c. 250 cm3 b. 25 cm3 d. 2500 cm3

Look at the reaction below: ca(hco3)2 --> caco3 + co2 + h2o first, balance the reaction. once balanced, use dimensional analysis or another method to find out how many moles of carbon dioxide will be produced if we start with 16.5 moles of calcium bicarbonate (calcium hydrogen carbonate). = mol of co2 number needs to be reported to three significant figures.

Which of the following molecules is polar? c3h7oh c2h5cooh

Which of the following has expanded our knowledge of the universe beyond our solar system the most? a. manned space travel b. the hubble space telescope c. the pioneer and voyager missions d. the international space station