Vocabulary that Matters
When one or more substances are changed into new substances is called this.
What is a chemical reaction?
In chemical reactions the -> symbol stands for this.
What is yields?
____ Zn + ____ AgNO3 → ____ Ag + ____ Zn(NO3)2
Ag has this coefficent when the reaction above is balanced.
What is 2?
When the number of atoms is equal on each side we say that the equation is this.
What is balanced?
When heat is produced, light is emitted, or a precipitate is formed this is an indication of this
What is a chemical reaction/change?
The symbol (g) stands for this in a chemical equation.
What is a gas?
When an element occurs naturally with a subscript of 2 it is called this.
What is a diatomic element?
In the chemical reaction, Mg + O -> MgO, the compound MgO is located on this side of the equation.
What is the product side?
What type of reaction has O2 as a reactant?
What are combustion reactions?
____ C4H10 + ____ O2 → ____ CO2 + ____ H2O
The coefficient for CO2 when the equation is balanced would be this number.
What is 8 CO 2?
This law states that matter cannot be created or destroyed.
What is the law of conservation of mass/matter?
263g of Mercury oxide decomposes to form 126g of oxygen gas and ______ g of Mercury.
What is 137g of Mercury?
Balance the following equation. You must show all work and simplify your answer! Li + Br2 --> LiBr
What is 2Li + Br2 --> 2LiBr ?
When ions from 2 compounds switch places, this type of reaction occurs.
What is a double replacement reaction?
This term refers to a substance that has been dissolved in water
What is an aqueous solution?
These 3 things are essential in writing a chemical equation.
What are reactants, an arrow, and products?
Balance the following equation. You must show all work and simplify your answer! C6H6 + O2 --> CO2 + H2O
What is 2C6H6 + 15O2 --> 12CO2 + 6H2O?
Balance the following equation. Be sure to show all work and simplify your answer. hexane (C6H14) + oxygen --> carbon dioxide + water
2C6H14 + 19O2 --> 12CO2 + 14H2O