How many moles of hydrogen gas (H2) would be produced from the reaction of 0.30 moles of water (H2O) and excess sodium? (Na)

Given unit: Answer unit: Solution:

What is the relationship of air masses and the temperature of oceans?

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.