Question | Answer |
Balance chemaical reaction | both sides of the equation have same number of atoms of each element |
Correct Amounts | the amount of reactants to predict the amounts or products |
Coefficients | the numbers which represent the number of units of each substance an reaction |
Chemical equation | is using chemical formules ans symbols to describe a chemical reaction and the products it produces |
Antoine Lavoiser | experimented with mercury 2 oxide and heat |
Products | new substances that are produce |
Chemical Reactions | Change of one or more substance converted into new sub substances |
Synthesis Reaction
A + D -> C | two or more sunstance form new substance |
Single Replacement
A + BC -> AC + B or D -> BC + C | one element replaces another one is a compound |
Double Replacement
AB + CD -> AD + CD | results if a precipitate water or a gas forms when two ionic compounds in solution are combined |
Exotherermic reaction | energy given off in the form of heat |
Exergonic Recation | energy required to break bonds is less than the energy released from new bonds energy given off usuallly light |
Endergonic Reactions | more energy is required to break bond than to form new ones need energy for the reaction to occur |
Endothermic reaction | energy needed is heat |
Catalyst | is a substance that speeds up a chemical reactions without being permanently changed |
inhibitors | prevents or slows a chemical reaction or interferes with a catalysts action |