Give the composition of hydrogen peroxide.
A) two hydrogen atoms and two oxygen atoms
B) one hydrogen atom and one oxygen atom
C) two hydrogen atoms and one oxygen atom
D) one hydrogen atom and two oxygen atoms
Correct Answer:
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Q4: Which of the following statements about the
Q8: Which of the following represents a hypothesis?
A)
Q12: The atomic number (Z)is the number of
Q13: Identify the characteristics of a gas.
A) definite
Q15: An element has three stable isotopes with
Q18: A substance composed of two or more
Q18: Rutherford's Gold Foil Experiment helped prove
A) the
Q19: Identify the characteristics of a liquid.
A) definite
Q19: When two elements form two different compounds,the
Q20: A substance that can't be chemically broken
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