Chemical Equations Flashcards
What is a chemical equation?
A short, easy way to show a chemical reaction, using symbols rather than words.
What is a chemical reaction?
A process in which substances undergo chemical changes
What is a formula?
A combination of symbols that shows the ration of elements in a compound
What is subscript?
The small number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound.
What is coefficient?
Large number placed in front of a chemical formula in an equation, used to indicate how many atoms of each reactant and product are present.
What is a reactant?
A substance that enters into a chemical reaction
What is a product?
A substance formed as a result of a chemical reaction
What is conversion of mass?
The principle stating that matter is not created or destroyed during a chemical reaction.
Balance: (Make an element, before and after chart)
_______NaCl + ______BeF2 —> _____NaF + _____BeCl2
2NaCl + 2BeF2 —> 2NaF + 2BeCl2
Balance: (Make an element, before and after chart)
_____FeCl3 + _____Be3(PO4)2 —-> ____BeCl2 + _____FePO4
2FeCl3 + _____Be3(PO4)2 —-> 3BeCl2 +2FePO4
Balance: (Make an element, before and after chart)
______AgNO3 + _______LiOH —-> _____AgOH + _____ LiNO3
AgNO3 + LiOH —-> AgOH + LiNO3
Balance: (Make an element, before and after chart)
_____Fe2O3 + _____C —-> _____Fe + _____CO2
2Fe2O3 + 3C —-> 4Fe + 3CO2
Balance: (Make an element, before and after chart)
_____CH4 + ____O2 —–> _____CO2 + ____H2O
CH4 + 2O2 —–> CO2 + 2H2O
Balance: (Make an element, before and after chart)
______Mg + _____Mn2O3 —-> _____MgO + ______Mn
3Mg + _____Mn2O3 —-> 3MgO + 2Mn
