Test - Chemical Bonding Flashcards
1
Q
- What is the general form for a single-replacement reaction
A
A + BX —> AX + B
2
Q
- Which two reactions could be considered opposites?
A
A synthesis reaction and a decomposition reaction
3
Q
- Which of the following equations best represents “magnesium reacting with chlorine to produce magnesium chloride.”
A
Mg + Cl2 —> MgCl2
4
Q
- A bottle of hydrogen peroxide that eventually turns into a bottle of water and oxygen gas is an example of a
A
Decomposition reaction
5
Q
- In a chemical equation, numbers often appear in front of a chemical formula. These numbers tell you the
A
Number of molecules or atoms of each substance in the reaction
6
Q
- Which of the following is a balanced chemical equation
A
2 Fe2O3 + 3 C —> 4Fe + 3CO2
7
Q
- Process by which the atoms of one or more substances are rearranged to form different substances
A
Chemical reaction
8
Q
- Which of the following is a correctly balanced chemical equation
A
Cl2 + 2Nal —> 2NaCl + I2
9
Q
- a teacher wants to demonstrate a chemical reaction for her students. Which activity below would best demonstrate a chemical reaction.
A
Placing metal in an acid to create gas
10
Q
- Which of the following is Not an example of a chemical change?
A
All are examples of chemical change
11
Q
- How many nitrogen atoms are represented in 2Ca(NO3)2 in this compound
A
4
12
Q
34 the material present at the beginning of a chemical reaction are called the products
A
F, reactants
