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10 QuestionsShow answers
Question 1
SURVEY
60 seconds
Q. Which of the following is not a compound?
answer choices
HCl
Cl
NaCl
CO2
Question 2
SURVEY
60 seconds
Q. Which of the following represents an element?
answer choices
H2O
H2
NaCl
CaCO3
Question 3
SURVEY
60 seconds
Q. Which of the following could be a symbol on he periodic table of elements?
answer choices
JZ
jz
Jz
JZa
Question 4
SURVEY
120 seconds
Q. Salt water boils and the water completely evaporates, salt (NaCl) is left in the bottom of the beaker. Which of the following is left in the beaker?
answer choices
Compound
Element
Mixture
None of the Above
Question 5
SURVEY
30 seconds
Q. What cannot be broken down into other substances?
answer choices
Compound
Mixture
Solids
Element
Question 6
SURVEY
60 seconds
Q. What is made up two or more elements that are chemically combined?
answer choices
Element
Mixture
Compound
Solids
Question 7
SURVEY
30 seconds
Q. Which of the following an element?
answer choices
Carbonic Acid
Copper
Iron and Copper
Water
Question 8
SURVEY
60 seconds
Q.
answer choices
1
2
3
4
Question 9
SURVEY
30 seconds
Q.
answer choices
1
2
3
4
Question 10
SURVEY
120 seconds
Q. How many elements are represented in the compound? Na2CO3