Question

1. which of the following equations correctly rearranges the atoms to demonstrate conservation of mass? a. 5p + 6o2 → 2p2o5 b. 3fe + 3o2 → 2fe2o3 c. n2 + 3h2 → 2nh3 d. na2co3 + hcl → nacl + h2co3 4. which scientific concept is represented by a balanced chemical equation? a. matter cannot be created or destroyed in a chemical reaction. b. reactants must combine, not separate, to create a product. c. all balanced reactions must include subscripts and coefficients. d. the order of the elements must be the same for the reactant and product sides of a correctly written equation.

Explanation:

Answer:

1. A. \(5P + 6O_{2}\to2P_{2}O_{5}\)
2. A. Matter cannot be created or destroyed in a chemical reaction.