A chemical formula is an expression used to represent:
A. mixtures, only
B. elements, only
C. compounds, only
D. compounds and elements
What is D. compounds and elements?
100
When an atom of chlorine forms an ionic bond with an atom of sodium, the atom of chlorine __________ an _________.
What is gains an electron?
100
This substance is always produced in the reaction between hydrochloric acid and sodium hydroxide.
What is water?
100
DOUBLE JEOPARDY!
1. The following equation could be classified as this type of reaction: Cu + 2AgNO3 → 2Ag + Cu(NO3)2
2. The following equation could be classified as this type of reaction: Mg(OH)2 + H2SO4 → MgSO4 + H2O
1. What is single replacement? 2. What is double replacement?
100
DOUBLE JEOPARDY!
The correct formula for the compound: carbon tetrachloride is this.
What is CCl4?
200
DOUBLE JEOPARDY!
A characteristic of most nonmetallic solids is that they are
A. brittle C. malleable
B. ductile D. conductors of electricity
What is A. brittle?
200
DOUBLE JEOPARDY!
When metals combine with nonmetals, the metallic atoms tend to ______ electrons and become __________ ions.
A positive ion is called a _________.
What is lose electrons and become positive ions? Cation?
200
Which solution will change red litmus to blue?
A. HCl
B. NaCl
C. NaOH
What is C. NaOH?
200
This equation could be classified as this.
BaI2 + H2SO4 → 2HI + BaSO4
What is double replacement?
200
This is the correct chemical formula for magnesium hydroxide? (hydroxide: OH-)
What is Mg(OH)2 ?
300
Which statement describes a chemical property of the element iodine?
A. Its crystals are a metallic gray.
B. It dissolves in alcohol.
C. It forms a violet-colored gas.
D. It reacts with hydrogen to form a gas.
What is D. It reacts with hydrogen to form a gas?
300
This type of matter is composed of two or more different elements that are chemically combined in definite amounts
What is a compound?
300
DOUBLE JEOPARDY!
A. This is an example of a strong citric acid.
B. This is considered a strong base, it is used in cleaning and can remove the color from clothing.
C. This solution is neutral and is used for drinking.
D. This is known as an acetic acid.
A. What is lemon? B. What is bleach? C. What is water? D. What is vinegar?
300
1. This equation can be classified as this.
AgNO3(aq) + NaCl(aq) → NaNO3(aq) + AgCl(s)
2. This equation can be classified as this.
Zn + S → ZnS
1. What is double replacement? 2. What is synthesis?
300
This is the correct name for the compound CuBr2.
What is copper (II) bromide?
400
More than two-thirds of the elements of the Periodic Table are classified as ______________. Fluorine is the most reactive ____________. Francium is the most reactive ___________.
What is metals, nonmetal, metal?
400
Atoms of which element have the greatest tendency to gain electrons?
A. bromine C. fluorine
B. chlorine D. iodine
What is C. fluorine?
400
A solution with a pH of 11 is first tested with phenolphthalein and then with litmus. These are the colors of each indicator in this solution.
What is phenolphthalein is pink and litmus is blue?
400
The following equation can be classified as this.
C4H12 + O2 → H2O + CO2
What is combustion?
400
1. The law of conservation of mass states that mass is neither _________ nor __________ in a chemical reaction.
2. The substances that undergo the change are called this.
3. The new substances formed as a result are called this.
What is create nor destroyed? What is the reactants? What is the products?
500
When metals form ions, they tend to do so by _________ electrons and forming __________.
What is losing electrons and forming cations?
500
Which substance contains bonds that involved the transfer of electrons from one atom to another?
A. CO2
B. NH3
C. KBr
D. Cl2
What is KBr?
500
A scientist uses litmus paper to measure the pH of several different solutions. Which solution turns the litmus paper red?
A. NaOH C. HCl
B. NaCl D. NH3
What is C. HCl?
500
1. This equation can be classified as this.
C12H22O11 + O2 → CO2 + H2O
2. This equation can be classified as this.
2H2O → 2H2 + O2
1. What is combustion? 2. What is decomposition?
500
1. A mixture of two or more elements, at least one of which is a metal, is called this.
2. These are two examples (provided in guided notes).