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X-rays
a have very long wavelengths
b are blocked by the ionosphere
c are less dangerous than ultraviolet rays
d are not emitted by the sun
Answers: 3
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Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?
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Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?
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What type(s) of intermolecular forces are expected between ch3ch2cooh molecules? dipole forces, induced dipole forces, hydrogen bonding
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X-rays
a have very long wavelengths
b are blocked by the ionosphere
c are less danger...
a have very long wavelengths
b are blocked by the ionosphere
c are less danger...
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