How many sulfur atoms are in H2SO4?

When electricity is produced from coal, the chemical energy in coal is first changed to thermal energy. True or False (i need this answer like now cuz i have to have this test done by 5:00 and its 8:30 -.-)

Which law states that the volume and absolute temperature of a fixed quantity of gas are directly proportional under constant pressure conditions?

In the water cycle matter moves towards the pull of gravity during

Kilograms represented by the mass defect for thorium-234 = 3.09 * 10-27 kg What is the nuclear binding energy for thorium-234?

What is the iupac name for H2CO3

A mixture of He He, N 2 N2, and Ar Ar has a pressure of 22.1 22.1 atm at 28.0 28.0 °C. If the partial pressure of He He is 2475 2475 torr and that of Ar Ar is 1049 1049 mm Hg, what is the partial pressure of N 2 N2?

Oceans make the temperaturs of nearby land more extreme ... True or false

The Greek letter D stands for A. Mass of B. Rate of C. Change in D. Heat stored in

14. Two or more substances that are together but do not combine to form a new, pure substance.

A solution of a compound with a known extinction coefficient of 23,100 M-1cm-1 has an absorbance of 0.735 in a 1.30cm path length, what is the concentration of the solution