Conservation of Mass
Matter cannot be created or destroyed
What is the Law of Conservation of Mass
Balance the following:
AgI + Na2S --> Ag2S + NaI
What is
2AgI + Na2S --> Ag2S + 2NaI
What type of chemical reaction gives off heat?
What is exothermic
The substances that are found on left side of the arrow symbol in a chemical equation.
What is the reactants
A chemical reaction where one element displaces another
What is single displacement
What is a chemical equation that has the same number of atoms in the products and reactants
What is a Balanced Equation
Balance the equation:
Na3PO4 + HCl --->NaCl + H3PO4
What is:
1 Na3PO4 + 3 HCl --->3 NaCl + 1 H3PO4
What type of chemical reaction absorbs heat?
What is endothermic
The substances that are found on the right side of the arrow symbol in a chemical equation.
What is the products
A process in which the physical and chemical properties of the original substances change as new substances with different physical and chemical properties are formed
What is a chemical reaction
50 grams of magnesium reacts with oxygen. How many grams of magnesium will be present after the reaction occurs?
What is 50 grams
Balance the following:
Ba3N2 + H2O ---> Ba(OH)2 + NH3
What is:
1 Ba3N2 + 6 H2O --->3 Ba(OH)2 + 2 NH3
A + B------AB represents what type of reaction?
What is Synthesis
In a chemical equation, the arrow sign represents the word______________.
What is yields or produces
The number placed in front of a chemical symbol or formula that represents the number of molecules present
What is coefficient
What do the products and reactants of a chemical reaction have in common?
What is they have the same amount of matter.
Balance the following:
TiCl4 + H2O ---> TiO2 + HCl
What is:
TiCl4 + 2 H2O ---> TiO2 + 4 HCl
The products of this reaction are water and carbon dioxide.
What is combustion
In a chemical equation, the plus sign represents the word(s)__________.
What is plus or added together
a number written below a chemical symbol that represents how many atoms are present.
What is a subscript
According to the Law of Conservation of Mass, if 5 atoms of carbon are used as a reactant and an unknown amount of oxygen atoms, how many atoms of oxygen atoms must be a part of the product if the TOTAL product is 11?
What is 6 atoms
Balance the following:
CaCl2 + Na3PO4 ---> Ca3(PO4)2 + NaCl
What is:
3 CaCl2 + 2 Na3PO4 ---> Ca3(PO4)2 + 6 NaCl
A chemical reaction where one reactant produces two or more products
What is decomposition
What does the symbol aq stand for?
What is aqueous (dissolved in water)
An expression in which symbols, formulas, and coefficients are used to represent a chemical reaction
What is a chemical equation