A chemical reaction occurs with calcium carbonate, CaCO3, and results in the production of two simpler compounds. Caco,
? 9
Cao +
28.00 g
co2
21.97 g
What should the mass of calcium carbonate, CaCO3, be BEFORE the reaction?

Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?

Which is a difference between molecular compounds and ionic compounds? select the correct answer below: question 5 options: molecular compounds typically form between a metal and a nonmetal, while ionic compounds typically form between nonmetals. molecular compounds result from the transfer of electrons between atoms to form ions, while ionic compounds result from the sharing of electrons between neutral atoms. molecular compounds are formed of discrete, neutral molecules, while ionic compounds are formed of large repeating arrays of opposite charges. molecular compounds have high melting points and high boiling points, while ionic