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8th Physical Science

Chap 14-Physical Science- Chemical Reaction

QuestionAnswer
What can you add to slow down a chemical reaction? Inhibitor
What do you call a chemical reaction that gives off heat? exothermic reaction
What do you call a chemical reaction that forms on compound from two or more substances? Synthesis Reaction
What does the 2 stand for in the formula Ag2S? subscript
Balancing a chemical equation so that the same number of atoms of each element is found in both the reactants and the products is an example of what? Law of Conservation of Mass
Which of the following is the correct chemical formula for (2)dinitrogen (4)tetroxide? N2O4
In which type of reaction do ions in two compounds switch places? a double-displacement reaction
The action, Holding a lit match to paper, is an example of what type of energy? activation
Enzymes in your body act as catalysts. Thus, the role of the enzymes is to increase what? chemical reactions
Name the type of reaction for 2CuO S
Name the type of reaction for Na2SO4+Mg SR
Name the type of reaction for BaSO4+2HCN DR
What happens to chemical bonds during a chemical reaction and what must be added? Energy to make the reactants combine.
What are four ways you can change the rate of chemical reaction? catalysts,concentration,surface area, temperature
What are the four clues that signal that a chemical reaction is taking place? color, energy change, gas formation, solid formation,
Created by: chefgrace03
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