Chapter 3 Questions Flashcards
1
Q
Which significant family group is non reactive but act as simple asphyxiants? A. Alkali metals B. Nobel gases C. Alkaline earths D. Halogens
A
B. Nobel gases
2
Q
At the core of most hazardous material reactions with the environment and with other materials is: A. Atomic stability B. Chemical bonding C. Endothermic source D. A significant family group
A
C. Chemical bonding
3
Q
Which of the following is one of the predictable four family groups? A. Alkali metals B. Non-metals C. Semimetals D. Transitional metals
A
A. Alkali metals
4
Q
What consists of two or more substances that are physically mixed, but not chemically bonded to one another? A. An element B. A compound C. A salt D. A mixture
A
D. A mixture
5
Q
A special term for when a liquid or gas completely dissolves in another liquid or gas is: A. Decomposition B. Concentrations C. Polymer D. Miscibility
A
D. Miscibility
6
Q
The majority of reactions liberate energy as heat and sometimes heat, light, and sound and are known as: A. Ionic B. Exothermic C. Endothermic D. Covalent
A
B. Exothermic
7
Q
Substance of two or more elements that have been United chemically are: A. Slurries B. Solutions C. Mixtures D. Compounds
A
D. Compounds
8
Q
What cannot be broken down into anything simpler without getting in to subatomic structure? A. Solutions B. Salts C. Compounds D. Elements
A
D. Elements
9
Q
Measures of how much of each compound is present in a mixture are expressed as: A. Concentrations B. Polarity C. Decomposition D. Miscibility
A
A. Concentrations
10
Q
A tool for organizing and displaying the elements in a way that provides some basic information about their characteristics is the: A. Four family groups B. Periodic table C. Atomic number D. Octet rule
A
B. Periodic table
11
Q
The basic building block of any substance is the: A. Nucleus B. Electron C. Neutron D. Atom
A
D. Atom
12
Q
An element with a filled outer shell will be: A. A mixture B. A compound C. Chemical bonded D. Atomically stable
A
D. Atomically stable
13
Q
Soluble material will: A. Become toxic when exposed to air B. Float in liquid C. Dissolve in liquid D. Turn to gas when exposed to air
A
C. Dissolve in liquid
14
Q
To be stable, an atom must have a(n): A. Outer wheel ready to accept electrons B. Odd number of electrons C. Even number of electrons D. Completely filled outer shell
A
D. Completely filled outer shell
15
Q
Which describes elements?
A. They cannot be broken down into anything simpler without getting into subatomic structure
B. They must be chemically bonded to another element to be stable
C. They are chemically stable in their our forms
D. They are divided into salts and non salts
A
A. They cannot be broken down into anything simpler without getting into subatomic structure
16
Q
The atomic number of an element at its number of: A. Neutrons B. Protons C. Atoms D. Nuclei
A
B. Protons
17
Q
One of the differences between ionic and covalent bonds is that ironically bonded compounds: A. Have flash points B. Are not solids C. Do not polymerize D. will polymerize
A
C. Do not polymerize
18
Q
For the most part, as the atomic number increases, so does the: A. Reactivity B. Atomic weight C. Bond energy D. Decomposition
A
B. Atomic weight