At 7 a. m., the science classroom had a temperature of 68˚F. By 3 p. m., the temperature had increased to 75˚F. Calculate the rate of temperature change from 7 a. m. to 3 p. m.

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

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.