100g of calcium carbonate was heated until it decomposed to give calcium oxide and carbon dioxide. 56g of calcium oxide was left. Work out the mass of carbon dioxide given off.

What is the product for the reaction of 1-butene with methanol and acid?

Is butter melted in a pan a endothermic or exothermic change

Difference between the reaction of metals with acids and reaction between metals and bases

A 25 mL solution of h2so4 is completely nuetralized by 18 mL of 1.0 mL of 1.0 M naoh using phenolphthalein as an indicator. what is the concentration of the h2so4 solution?

How many mol of hydrogen in 2.7 mol of caffeine?

When you measure something in meters cubed, you are measuring

Low density: low pressure: high density Is which. evaporation? water vapor? condensation / liquid water

Which structures are found on sponges? pores medusae polyps stinging cells

Coefficients in a chemical equation are used to: balance the number of atoms on both sides of the equation ensure that all subscripts on both sides of the equation are the same indicate energy changes that occur during the reaction indicate the type

What determines your blood cholesterol level?