The heart pushes blood into the blood vessels as chemical energy is converted to this form of energy.
A) thermal
B) radiant
C) mechanical
D) nuclear
Correct Answer:
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Q11: NaCl,table salt,is called a(n)
A)anion.
B)electrolyte.
C)cation.
D)ion.
Q17: The word ferrous refers to
A) an acid
Q18: Which element must be present for a
Q19: A cation is a(n)
A) positively charged ion.
B)
Q20: Which of the following acts as a
Q22: In which of the following is the
Q22: Zinc,selenium,cobalt,and iodine are all
A)trace elements.
B)compounds.
C)radioactive.
D)isotopes of hydrogen.
Q23: An atom has 1 proton,0 neutrons,and 1
Q24: Which of the following best describes a
Q25: Which of the following is described by:
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