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Physical Science Review Benchmark 1
Test Description: This is a review of first semester Physical Science. This review includes Bonding and Reactions.
Instructions: Answer all questions to get your test result.
1) What is the reaction of CaO ------- Ca + O2 ?
A
Single Replacement
B
Decomposition
C
Synthesis
D
Double Replacement
2) This represents what type of reaction? AB + CD ----- AC + BD
A
Single replacement
B
Decomposition
C
Synthesis
D
Double Replacement
3) Balance CF4 + Br2 ------ CBr + F2
A
2,1,2,4
B
2,2,2,4
C
2,1,22
D
2,2,2,2
4) What is the reaction of CF4 + Br2 ------- CBr + F2
A
Single Replacement
B
Double Replacement
C
Decompostion
D
Synthesis
5) What type of reaction is NaHCO3(s) + HC2H3O2(l) ------- H2CO3(aq) + NaC2H3O2(aq)
A
Double Replacement
B
Synthesis
C
Decomposition
D
Single Replacement
6) 2Na(s) + Cl2(g) ------ 2NaCl(s)
A
Decomposition
B
Single Replacement
C
Double Replacement
D
Synthesis
7) Balance N2 + H2 ----- NH3
A
1,3,2
B
1,3,3
C
1,3,2
D
1,2,2
8) The chemical bond formed when two atoms share electrons is called a
A
Alloy
B
Ionic bond
C
Covalent bond
9) What type bond is formed between oxygen atoms
A
Covalent
B
Ionic
10) Anions are formed by
A
Gaining the Nucleus
B
Gaining Electrons
C
Gaining Protons
D
Gaining Neutrons
11) Atoms become positive ions by
A
Gaining electrons
B
Losing protons
C
Gaining protons
D
Losing electrons
12) The chemical bond formed when two atoms share electrons is called a
A
Ionic
B
Covalent bond
13) When do atoms form an ionic bond?
A
When two metals form a alloy
B
When there is a metal and a nonmetal that are bonded
C
When a nonmetal and a metal share electrons
D
When two nonmetals share electrons
14) How does an atom of aluminum become an ion?
A
It gains three protons
B
It loses three protons
C
It loses three electrons
D
It gains three electrons
15) Which atoms are most likely to form a covalent bonds?
A
Metal atoms that share electrons
B
Nonmetal atoms that share electrons
C
Metal and nonmetals that share electrons
16) Electrons involved in the formation of chemical bonds are called _____.
A
Ionic electrons
B
Groups
C
Valence electrons
D
Alloy electrons
17) The properties of a compound are ________ the properties of the elements that form it.
A
Same as
B
Different from
18) What is something similar between an ionic and covalent bonds?
A
Both bond nonmetals to metals
B
Both make the element more stable
C
Both share electrons
19) Why do noble gases rarely form compounds?
A
They are highly reactive
B
Because they're already stable they're outermost energy levels are already complete
20) What type of bond is formed between sodium and chlorine?
A
Ionic
B
Covalent
*select an answer for all questions
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