An element is a substance whose atoms all contain the same number of neutrons.
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Q6: Elements or molecules contributing electrons during a
Q7: What is the universal solvent?
A) carbon
B) urea
C)
Q8: Isotopes are atoms of the same element
Q9: The two purine nitrogen bases are adenine
Q10: Molecules containing which type of bond do
Q12: Temperature has no effect on diffusion rate.
Q13: In an atom, _ orbit the nucleus.
A)
Q14: The smallest carbohydrates are simple _.
A) proteins
B)
Q15: Atoms that gain electrons become negatively charged.
Q16: What kind of bond is formed when
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