How do both plants and animals fight pathogens. a. both have a protective outer layer b. both have an antigen-antibody response c. both have a lymphatic system d. both produce plzz

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.

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating