Look at the following chemical equation. 10Ag + S = 8Ag S

What is true about this chemical equation? (Hint: The reactant is the substance at the start of a chemical reaction.

The product is the substance at the end of the chemical reaction.

A. It is unbalanced because the number of reactants is less than the number of products.

IB. t is balanced because the products contain the same number of sulfur (S) atoms as the reactants.

C. It is balanced because the mass of the reactants is equal to the mass of the products.

D. It is unbalanced because the products contain fewer silver (Ag) atoms than the reactants.

7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation. 8. when a 2.5 mol of sugar (c12h22o11) are added to a certain amount of water the boiling point is raised by 1 celsius degree. if 2.5 mol of aluminum nitrate is added to the same amount of water, by how much will the boiling point be changed? show all calculations leading to your answer or use 3 – 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100⁰c, how much steam at 100⁰c is produced? show all calculations leading to an answer. 10. the freezing of water at 0⁰c can be represented as follows: h2o (l) ↔ h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 – 4 sentences explain why applying pressure causes ice to melt.

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?