At which point does a substance with a fixed volume and shape physically change into a substance with a fixed volume and undefined shape?

A. boiling point
B. melting point
C. freezing point
D. vaporation point

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

Which scenario is most similar to the type of collision that gas particles have according to kinetic molecular theory

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.