Which processes cause rocks to be exposed
at Earth's surface? sc.7.E.6.2
A erosion and subduction
B erosion and uplift
C extreme heat and pressure
Dcmelting and cooling

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.

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