What is the molarity if 0.5 mol of sugar has been dissolved in a cup of tea with a volume of 200 mL

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

State one important difference between a physical change and a chemical change?

Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that