Chem 9
Double replacement
Which type of chemical reaction is this an example of? Fe2(SO4)3 + KOH -> K2SO4 + Fe(OH)3
Combustion
Which type of chemical reaction would this be classified as: C3H8 + O2 -> CO2 + H2O
Single replacement
Which type of reaction can be recognized by the general pattern A+BX -> AX + B
Double replacement
Which type of reaction is SiO2 + HF -> SiF4 + H2O?
The coefficients are equal
Which is NOT a sign that a double displacement reaction has occurred?
Precipitate
Which is the name of the kind of solid substance formed in this figure? Stuff pouring into a beaker
Second from shortest
Which of the following is the net ionic reaction occurring in the blood vessels of human lungs?
Decomposition
Which type of chemical reaction is shown? 2 big dots with two little dots yields them broken up
Single replacement
Which type of reaction involves one element and one compound reacting?
Synthesis
Which type of reaction is Al + O2 -> Al2O3?
Combustion
Which type of reaction takes place in the presence of oxygen and produces carbon dioxide and water?
Synthesis and decomposition
Which types of reactions are essentially opposites of one another?
True
Word equations use words to indicate reactants and products of chemical reactions
False
In a chemical reaction, the products are found On the left side of the arrow
True
In an aqueous solution, the solute is the part of the solution that is being dissolved in water
Water
In an aqueous solution, the solvent is always
False
The coefficient of each element should be the same on both sides of the equation
Longest one
Wh uh of the following is the complete ionic equation of the reaction between hydroidic acid and aqueous lithium sulfate?
Only show particles that participate in reactions
What are net ionic equations?
1, 5, 2
What are the correct coefficients when this chemical equation is balanced? P4 + O2 -> P2O5
2, 1, 2
What are the correct coefficients when this equation is balanced? K+Br2 -> KBr
4, 3, 1
What are the correct coefficients when this equation is balanced? Sb + O2 -> Sb4O6
2:4:3
What is the correct ratio of coefficients to balance this chemical equation? 4 dots yields 3
Two different compounds
What is the probable product of a double-replacement reaction?
Combustion reaction
A chemical reaction in which oxygen combines with a substance and releases energy in the form of heat and light is called a(n)
Synthesis reaction
A chemical reaction in which two or more substances react to produce a single product is called a(n)
True
A coefficient tens how many equivalens of each compound react in a given chemical reaction
True
A precipitate forms when two aqueous solutions react to form a product that cannot dissolve in water
Single replacement reaction
A reaction in which the atoms of one element replace the atoms of another element in a compound is called a(n)
True
A skeleton equation shows the formulas of the compounds participating in a chemical reaction and their states of matter but not the ratio in which they react.
False
All chemical reactions release energy, although some release it in the form of light and others in the form of heat.
False
An ionic equation that includes only the particles that participate in the reaction is called a complete ionic equation
The process by which the atoms of a substance or substances are rearranged to form other substances
Define a chemical reaction
Increase
Double replacement reactions occurring in an aqueous solution producing water ______ the number of solvent particles
Light and heat
Forest fire releases energy in the form of
21
How many total atoms are in 3Na2SO4?
52
How many total atoms are in 4Ca3(PO4)2?
Decomposition
Identify the type of chemical reaction demonstrated by this equation: KClO3 -> KCl + O2
Single replacement
Identify the type of reaction shown by this chemical equation: Al + HCl -> AlCl3 + H2
Dissolved in water
In a chemical equation, (at) after one of the substances means that it is which of these?
True
Some molecular compounds, known as acids, can dissolve in water
True
Some single replacement reactions are not possible depending on the activity of the different elements participating in the reaction
False
The ions that can be observed forming a precipitate are known as spectator ions.
H2O (l)
The net ionic equation of HCl (aq) + LiOH (aq) -> H2O + LiCl (aq) is
KBr+F2
Use the activity series shown to predict which reaction will occur.
The substance formed after two reactants react
define products in a chemical reaction.
False
the arrow in a chemical equation means "is equivalent to."