Sum science vocab Crossword
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
 
 
Down: 1) A chemical reaction in which two or more simple substances combine to form a new, more complex substance.2) A substance that enters into a chemical reaction.3) A substance formed as a result of a chemical reaction.4) The process in which substances undergo chemical changes that result in the formation of new substances.5) A material that increases the rate of a reaction by lowering the activation energy.7) A reaction that absorbs energy in the form of heat.8) The minimum amount of energy needed to get a chemical reaction started.9) A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.11) A material that decreases the rate of a reaction. Across: 6) A short, easy way to show a chemical reaction, using symbols.10) A solid that forms from a solution during a chemical reaction.12) A reaction that releases energy in the form of heat.13) The amount of one material in a certain volume of another material.14) hi15) A chemical reaction that breaks down compounds into simpler products.16) hiiiiiiiii
 

 

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