An untested explanation of a series of experimental observations is called _____.
A) a hypothesis
B) a theory
C) a law
D) an experiment
E) the scientific method
Correct Answer:
Verified
Q13: All of the following are examples of
Q14: A solution is a
A)pure element.
B)pure mixture.
C)heterogeneous mixture.
D)homogeneous
Q15: A sample that cannot be separated into
Q16: What is a scientific theory?
A)It is a
Q17: In a certain chemical reaction,9.11 g of
Q19: A saline solution similar to that used
Q20: A sample of cesium carbonate,weighing 3.80 g,requires
Q21: How many significant figures are there in
Q22: How many significant figures are there in
Q23: How many significant figures are there in
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