21. What is the relationship between a chemical reaction and a chemical equation? 22. What are products and reactants?

Which of the following statements is not true but balancing chemical equation a. subscription and reactants must be conserved in the products b. coefficients are used to balance the atoms on both sides c. the law of conservation of matter must be followed d. phases (S,L,G,AQ) are often shown for each compound but I'm not critical to balancing an equation e. all of the above statements are true

You need to know how to identify five major types of chemical reactions. Match the definition with the correct type of chemical reaction. If you need to review this concept, select here. Type of Chemical Definition Reaction A reaction that has two or more elements that react to / Simple Formation produce a compound Simple Decomposition Complete Combustion A reaction that involves the burning of a substance with sufficient oxygen available to produce the most common oxides of the elements making up the substance that is burned Single Replacement Double Replacement A reaction in which a compound breaks down and produces the two or more elements of which it was composed Simple Decomposition + A reaction that consists of two reactants that are Double Replacement : compounds and two products that are compounds A reaction that consists of two reactants, one that is an Single Replacement : element and one that is a compound, and two products, one that is an element and one that is a compound

No plagiarism Please! I know it's against the guidelines but could someone please help with both of these questions? 28.What is an unbalanced chemical equation? How does it break the Law of Conservation of Mass? 29. Use the words subscript and coefficient to explain how to balance chemical equations.