24. The balanced equation for the combustion of ethene is given below. If 97.7 g of oxygen is used, how much heat energy will be produced?
C2H4+ 3O2 → 2CO2 + 2H2O + 1390 kJ

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4

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.

Concentrations expressed as a percent by mass are useful when the solute is a a. liquid b. gas c. solid