A burning matchstick is brought near wood and petrol simultaneously. Which substance will catch fire first ? Give reason​

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

What substance has a mass of 9.5g and volume of 2.1cm^3

Amixture initially contains a, b, and c in the following concentrations: [a] = 0.300 m , [b] = 1.05 m , and [c] = 0.550 m . the following reaction occurs and equilibrium is established: a+2b⇌c at equilibrium, [a] = 0.140 m and [c] = 0.710 m . calculate the value of the equilibrium constant, kc.