5 Lucy heats some calcium carbonate. She weighs the reaction vessel at the start of the reaction and again after it has been heated. Calcium carbonate decomposes into calcium oxide and carbon dioxide.

Look at Lucy's results:
Mass of calcium carbonate before heating = 2.00 g

Mass of calcium oxide left after heating = 1.129

Calculate the mass of carbon dioxide that was released during the
decomposition. Show all your workings.

How many molecules of sucrose c12h22o11 are there in 454 grams of sucrose

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

Rank the following four acids in order of increasing bronsted acidity : h2f+ , ch3oh, (ch3)2oh+ , ch3sh2+