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The law of _______ states that a compound is always composed of the same elements in the same proportion by mass.
position
positive and negative
kilogram
-1
16
definite proportions
planets orbiting the sun
valence electrons
What is the molar mass of the element oxygen?
position
positive and negative
kilogram
-1
16
definite proportions
planets orbiting the sun
valence electrons
The charge of an electron is what?
position
positive and negative
kilogram
-1
16
definite proportions
planets orbiting the sun
valence electrons
What is the SI base unit used to measure the amount of a substance
position
positive and negative
kilogram
-1
16
definite proportions
planets orbiting the sun
valence electrons
According to modern atomic theory, it is nearly impossible to determine an electron's exact _________.
position
positive and negative
kilogram
-1
16
definite proportions
planets orbiting the sun
valence electrons
Atoms of elements that are in the same group have the same number of what?
position
positive and negative
kilogram
-1
16
definite proportions
planets orbiting the sun
valence electrons
What is the overall charge of an unreacted atom?
position
positive and negative
kilogram
-1
16
definite proportions
planets orbiting the sun
valence electrons
According to Bohr\'s model of the atom, electrons behave like what?
position
positive and negative
kilogram
-1
16
definite proportions
planets orbiting the sun
valence electrons
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