During a chemical reaction, calcium carbonate (CaCO3) breaks down to form calcium oxide (Cao) and carbon
dioxide (CO2).
Which equation represents this chemical reaction?
O A. CaO + CO2- CaCO3
B. CaCO3 + CaO + CO2
C. CaCO3 + CaO + CO2
D. CaCO3 + CO2 + Cao

1. combine iron and copper (ii) sulfate solution. (hint: iron will form the iron (iii) ion) fe + cuso4 → 2. combine lead (ii) nitrate and potassium iodide solutions. pb(no3)2+ kl → 3. combine magnesium metal and hydrochloric acid solution. mg + hcl → 4. electrolysis (splitting) of water. h2o → 5. burning magnesium. mg + o2 →

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.