Vocab
This is what an abbreviated representation of a chemical reaction that consists of chemical symbols and formulas is called.
What is a chemical equation?
Classify the following reaction:
2KBr → 2K + Br2
What is a decomposition reaction?
DOUBLE JEOPARDY!!!
True or False: Subscripts can be changed in order to balance a chemical equation.
FALSE - subscripts cannot be changed in order to balance a chemical equation.
Balance the following equation:
N2 + Cl2 → NCl3
What is N2 + 3Cl2 → 2NCl3?
T/F: The following equation is correctly balanced
2NO(g) + 2CO(g) → N2(g) + 2CO2(g)
True!
This is the name of a substance formed from another substance or substances during a chemical reaction.
What is a product?
Classify the following reaction:
2 Al + 3 Cl2 → 2 AlCl3
What is a synthesis/combination reaction?
This is how solid sodium metal is chemically represented when it exists by itself.
What is Na(s)?
Balance the following equation:
CH4 + O2 → CO2 + H2O
What is CH4+2O2 → CO2 + 2H2O?
Determine whether the following is a balanced or an unbalanced equation:
NO2 → N2O4
What is unbalanced?
DOUBLE JEOPARDY!!!
This is the name of the reaction between an acid and a base in order to form molecular water.
What is a neutralization reaction?
Classify the following reaction:
2HCl + Zn → ZnCl2 + H2
What is single-displacement?
This is how oxygen gas is chemically represented when it exists by itself.
What is O2(g)?
A piece of magnesium metal, Mg(s), is ignited in oxygen gas, O2(g), leaving behind the white ash-like substance magnesium oxide, MgO(s); balance the equation for this reaction.
What is 2Mg + O2 → 2MgO?
In order to balance the following equation, what coefficient must be placed in front of fluorine:
_F2 + 2H2O → 4HF + O2
What is 2?
This type of reaction involves molecular oxygen as a reactant and rapidly produces heat and flames as a byproduct.
What is a combustion reaction?
Classify the following reaction:
TiCl4 + 2H2O → TiO2 + 4HCl
What is double-displacement?
This is how a product of solid sodium oxide would be chemically written.
What is Na2O(s)?
When sodium metal, Na(s), reacts with water, H2O, it forms a solution of sodium hydroxide, NaOH(s), and hydrogen gas, H2(g); write the balanced equation for this reaction.
What is 2Na + 2H2O → 2NaOH + H2?
Aluminum metal and chlorine gas combine to form the product aluminum chloride; state the ratio of aluminum to chlorine atoms in the product.
What is 1 aluminum to 3 chlorine atoms (AlCl3)?
This is what a compound that is free of molecular water is called.
What is an anhydrous compound?
Classify the following reaction:
H+Cl- + Na+(OH)- → Na+Cl- + H2O
What is a neutralization reaction?
These are the two reasons why subscripts CANNOT be changed in order to balance a chemical equation.
What is the law of definite proportions AND the law of conservation of mass.
Hydrogen gas combines with iodine gas to form the compound HI; write the balanced equation for this reaction.
What is H2 + I2 → 2HI?
DOUBLE JEOPARDY!!!
This is the name of another type of classification of reactions in which the charge of the atoms in the products differs from that of the original charge of the atoms in the reactants.
What is a redox (oxidation-reduction) reaction?