If either Reaction A or B does not obey the law of conservation of mass (matter), draw additional molecules on the reactant and/or product side in order to make the number of all atoms equal on both sides of the equation. (remember that once written correctly, chemical formulas cannot be changed. in other words, molecules must remain intact.)

Which object forms when a supergiant runs out of fuel? a red giant a black hole a white dwarf a neutron star

Consider the following system at equilibrium. caco3(s) ca2+(aq) + co32–(aq) the addition of which compound will cause a shift in equilibrium because of a common ion effect? ccl4 co2 cuso4 na2co3

Consider the following unbalanced equation for the combustion of hexane: αc6h14(g)+βo2(g)→γco2(g)+δh2o(g) part a balance the equation. give your answer as an ordered set of numbers α, β, γ, use the least possible integers for the coefficients. α α , β, γ, δ = nothing request answer part b determine how many moles of o2 are required to react completely with 5.6 moles c6h14. express your answer using two significant figures. n n = nothing mol request answer provide feedback