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Chem 103 > Lecture 1 > Flashcards

Lecture 1 Flashcards

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1
Q

What is multiple proportions

A

When multiple compounds are formed by the same elements the proportions are in single whole number ratios
EX. 1.0g C + 1.3g O = CO
1.0g C + 2.6g O = CO2

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2
Q

What is a substance and what is included in a substance

A

A substance has fixed compositions and it consists of elements and compounds

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3
Q

Daltons atomic model accounted for what laws

A

conservation of mass
constant composition
multiple proportion

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4
Q

What is constant composition

A

A compound has fixed proportions of constituent elements
EX. No matter where you get CO2 the composition will always be the same

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5
Q

what is a compound

A

different atoms bonded together

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6
Q

What is conservation of mass

A

The total mass of the products is equal to the total mass of the reactants.

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7
Q

what is a mixture

A

several different substances mixed into one

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8
Q

What is an element

A

One type of atom

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Chem 103 (2 decks)

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