Why do molecular compounds differ in shape?

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.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize