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Chemistry 103 Exam 1 Study Guide Questions with Correct Answers
Chemistry 103 Exam 1 Study Guide Questions with Correct Answers
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Chemistry 103 Exam 1 Study Guide Questions withCorrect Answers
The Law of Definite Proportions states that in a given chemical
compound, the elements are always combined in the same proportions
by _______________ Correct Answer-mass
The Law of Conservation of mass states that no detectable gain or loss
of mass occurs in chemical reactions. Mass is _______________.
Correct Answer-conserved
Dalton's atomic theory states that matter consists of tiny particles called
_____________ Correct Answer-atoms
Dalton's theory also states that atoms are ____________: in chemical
reactions, atoms can rearrange but they do not themselves break apart.
Correct Answer-indestructable
Dalton's theory also states that in a given compound the constituent
atoms are always present in the same fixed numerical ____________
Correct Answer-ratio
Electrons are ___________ charged, protons are ______________
charged, and neutrons are _________________. Correct Answer-
negatively, positively, neutral
, Electrons are much _______________ than protons and neutrons
Correct Answer-smaller
Protons and neutrons are found within the _____________ of an atom
Correct Answer-nucleus
In a neutral atom, the number of ____________ and _______________
must be equal. Correct Answer-protons, electrons
The atomic number f an atom = its number of _______________ Correct
Answer-protons
the mass number of an atom = ___________+____________ Correct
Answer-protons, neutrons
Isotopes vary only in the number of ___________________ Correct
Answer-neutrons
___________ is defined as anything that occupies space and has mass
Correct Answer-matter
_______ refers to how much matter there is in a given object, whereas
___________ refers to the force with which the object is attracted by
gravity Correct Answer-mass, weight
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