The combustion of propane C, H, produces carbon dioxide and steam
C, H,(g) +50,(g) + 300,(g) + 4H2O(1)
How many moles of Co, are produced when 5.0 mol of propane are burned in an ens of oxy
O 2.5 mol
O 1.0\times 10^{1) mol
O 5.0 mol
O 1.7 mol
O 15 mol

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

Chemistry worksheet - i am not sure what they are asking for exactly?

How do temperature and salinity affect deepwater currents? as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.