Weegy: Answer is D. sodium is produced more economically. User: 10. A chemical reaction in which two elements or radicals change places with two other elements or radicals is a _______ reaction. A. decomposition B. substitution C. double replacement D. combination Weegy: B. decomposition User: 11. The names of the compounds FeS, NaCl, NaOH, and Pb(CN)2 all end in the suffix A. -ic. B. -ide. C. -ate. D. -ite. Weegy: C. -ide. User: 12. A substance that contains hydrogen that may be replaced by a metal is a/an A. colloid. B. nonmetal. C. base. D. acid. Weegy: C. acid. source: User: 13. Organic chemistry is the study of compounds containing A. hydrogen. B. nitrogen. C. carbon. D. oxygen. Weegy: C. carbon. User: 14. The statement "matter can be neither created nor destroyed by chemical means, but it can be changed from one form to another" is the chemical law of A. conservation of energy. B. definite proportions. C. conservation of matter. D. atomic disintegration Weegy: The answer is B. conservation of matter. :) User: 15. Salt is the product formed by a reaction in which _______ atoms of an acid are replaced by the atoms of a metal. A. hydrogen B. oxygen C. carbon D. nitrogen Weegy: C. hydrogen. Salt is the product formed by a reaction in which hydrogen atoms of an acid are replaced by the atoms of a metal. User: 16. The primary metallic element that's added to steel to make stainless steel is A. tungsten. B. chromium. C. antimony. D. silver. Weegy: A. chromium. User: 17. Which one of the following formulas represents an aldehyde? A. C2H4O B. C6H10O5 C. C2H5OH D. CH3COOH Weegy: A. C2H4O represents an aldehyde. User: 18. The most active of all the chemical elements is a halogen known as A. bromine. B. iodine. C. astatine. D. fluorine Weegy: The most active of all the chemical elements is a halogen known as A. fluorine. User: 19. Which of the following is ... (More)