Which of the following cannot be classified as a substance

*will mark you brainliest + 15 points ** why does the equilibrium of a system shift when the pressure is increased? a. to maximize the stress on the system b. to stop restoring equilibrium to the system c. to increase the total moles of gas in the system d. to decrease the total moles of gas in the system

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

How many moles of oxygen gas are produced from the decomposition of six moles of potassium