Which of these is an example of a reaction that absorbs energy? A. a cake baking
B. a candle burning
C. a firework exploding
D. a piece of wood smoldering

An unknown substance has been shown to have weak covalent bonds. which of the following is most likely a property of this substance? a. high ph b. high conductivity c. low melting point d. low flammability

Match each term to its description. match term definition excess reactant a) reactant that can produce a lesser amount of the product limiting reactant b) amount of product predicted to be produced by the given reactants theoretical yield c) reactant that can produce more of the product

Is the flow of energy during vaporizing more like the flow during melting or during freezing