Combinations that form from mixtures of different elements are called
A) isotopes
B) atoms
C) ions
D) compounds
Correct Answer:
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Q8: An ion is all of the following
Q9: Chemically stable atoms are inert or less
Q9: Proteins are chains of _ that sometimes
Q12: The total number of protons in an
Q15: The double helix is a structure associated
Q16: The atomic nucleus consists of:
A)cations and anions
B)protons,electrons
Q16: Ions with opposite charges are generally held
Q17: Which of the following pairs is mismatched?
A)
Q18: When sodium hydroxide,a strong base,is added to
Q18: When proteins are made up of several
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