Science Chemistry quiz cards #1 Flashcards

(16 cards)

0
Q

Chemical Change

A

A change in matter that produces one or more new substances

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1
Q

Physical Change

A

Change that alters the appearance/form of material but does not make it into another substance

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2
Q

Matter

A

Matter anything that has mass and takes up space

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3
Q

Chemistry

A

The study of properties matter and how it changes

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4
Q

Precipitate

A

Solid that forms from a solution during chemical reaction

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5
Q

Chemical Equation

A

Short, easy way to show a chemical reaction using symbols

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6
Q

Chemical formula

A

Combination of symbols that represents elements in compound

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7
Q

Product

A

Substance formed as a result of chemical reaction

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8
Q

Reactant

A

Substance that enters into a chemical reaction.

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9
Q

Synthesis reaction

A

A chemical reaction when two or more simple substances combine to form new, complex substance

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10
Q

Replacement reaction

A

Reaction when one element replaces another in compound or when two elements in different compounds trade places

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11
Q

Decomposition reaction

A

Chemical reaction that breaks down compounds into simpler products

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12
Q

Subscript

A

Number in a chemical formula. Tells the number of atoms in molecule or ratio of elements in compound

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13
Q

Coefficient

A

Number in front of chemical formula in equation that includes how many molecules/atoms of each reactant/product are involved in reaction

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14
Q

Open system

A

Matter can enter from or escape to the surroundings

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15
Q

Closed system

A

Matter is not allowed to enter or exit.