The process that occurs when physical forces break rock into smaller pieces without changing the rock’s chemical composition is called a. differential weathering b. mechanical weathering c. erosional weathering d. chemical weathering

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

2-bromo-2-methylbutane undergoes an e1 elimination reaction in the presence of ethanol. in the next reaction only one of the possible products is represented. although the product shown is not the major product of the reaction, notice that there is more than one way it can be produced. complete the mechanism and draw the missing substances.