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Chapter 1- 4 Concepts > Vocab > Flashcards

Vocab Flashcards

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0
Q

Submicroscopic particles that are fundamental building blocks of matter

A

Atoms

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1
Q

Anything that occupies space and has mass.

A

Matter

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2
Q

2 or more atoms joins to one another in specific geometric arrangements.

A

Molecules

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3
Q

3 common states of matter

A

Solid, liquid, gas

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4
Q

Composed of only one type of Atom, or molecule.

A

Pure substance

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5
Q

Composed of two or more different types of atoms or molecules combined In variable proportions.

A

Mixture

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6
Q

A substance that cannot be broken down

Composed of single type of atom

A

Element.

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7
Q

A substance composed of two or more elements in fixed definite proportions.

A

Compounds

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8
Q

A mixture such as oil and water that has two or more regions w/ different compositions.

A

Heterogenous mixture

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9
Q

A mixture such as saltwater that has the same composition throughout.

A

Homogenous mixture

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10
Q

A substance displays only through changing its composition. (Odor, taste, color,appearance, melting)

A

Physical property

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11
Q

Ability of a substance to form new substances

A substance displays only through changing its composition. (Corrosiveness, flammability, acidity, toxicity)

A

Chemical property

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12
Q

“same substances but looks different”
Ex: ice-water-steam

Matter changes it’s appearance but not it’s composition.

A

Physical change

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13
Q

Reactions—different substances and properties

Matter does change it’s composition.

A

Chemical change

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14
Q

The process by which one or more substance form into different substances via a chemical change.

A

Chemical reaction

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15
Q

The initial substances in a chemical energy

A

Reactants

16
Q

The final substance produced in a chemical reaction.

A

Products

17
Q

A form of potential energy associated w/ positions do the particles that compose the chemical system.

A

Chemical energy

18
Q

Energy associated w/ it’s position or component.

A

Potential energy

19
Q

Energy associated w/ it’s motions.

A

Kinetic energy

20
Q

A flow of energy due to a temperature change.

A

Heat

21
Q

A measure of random motions of the components.

A

Temperature

22
Q

Law of conservation of energy

A

Energy can neither be created nor destroyed.

23
Q

A measure of the quantity of matter I’m it.

A

Mass

24
Q

Science that tries to understand how matter behaves by studying how atoms a molecules behave.

A

Chemistry

25
Q

A brief statement that summaries past observations and predicts future ones.

A

Scientific law

26
Q

Law of conservation of mass

A

In a chemical reaction, matter is neither created nor destroyed- Lavoisier.

27
Q

” All matter was composed of me all indestructible particle called atoms.”

A

Atomic theory

28
Q

The smallest identifiable unit of an element.

A

Atom

29
Q

Electron

A

Negatively charged particle that occupies most of the atoms volume but contributes almost none of its mass.

30
Q

1) each element is composed of tiny indestructible particles called atoms
2) all Atoms of a given element have the same mass and other properties that distinguish them from the Atoms of other elements
3) Atoms combined in simple whole number ratios to form compounds

A

Atomic theory – John Dalton

31
Q

1) most of the Atoms mass and all of its positive charge are contained in the small core called nucleus
2) most of the volume of the Atom is empty space through which the tiny negatively charged electrons are dispersed
3) there is many negatively charged electrons outside the nucleus as there are positively charged particles inside the nucleus so that the Atom is electrically neutral

A

Nuclear theory of an atom

32
Q

Occupies left side of the table they are good conductors of heat and electricity

A

Metals

33
Q

Occupies upper right side of the table properties include solids at room temperature, gases that tend to gain electrons will undergo a chemical changes.

A

Nonmetals

34
Q

Semi metals, mixed properties also known as semi conductors, electrical conductivity that can be changed and control

A

Metalloids

35
Q

Same number of times but different number of neutrons

A

Isotopes

Chapter 1- 4 Concepts (1 decks)

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