Ametal lid on a jar may loosen when it has been held in hot water because the hot water causes the

a. glass jar to contract
b. metal lid to contract
c. glass jar to expand more than the metal lid
d. metal lid to expand more than the glass jar

Ineed this awnser fast select the correct answer. this chemical equation represents the burning of methane, but the equation is incomplete. what is the missing coefficient in both the reactants and the products? ch4 + → co2 + a. 0 b. 1c. 2d. 3 e. 4