Which of the following is the best example of a closed system? a. a car engine b. our universe c. a greenhouse d. an insulated gas cylinder

What is the standard unit of measure for acceleration?

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.

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as