Chapter 1 - Chemistry: The Study of Change

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Chemistry

21 Terms

1

margin of error

The ________ in a measurement is indicated using significant figures, which are the meaningful digits in a measured or calculated quantity.

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2

Mass

________ is a broad attribute that refers to the amount of matter in a particular sample of a substance.

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3

force of gravity

The ________ acting on an object is known as weight.

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4

intensive property

A(n) ________ is a density, which is defined as the mass of an object divided by its volume.

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5

Chemists

________ can examine the structure of atoms and molecules, which are the fundamental units of chemistry, and create new compounds with specified features.

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6

Chemistry

________ is sometimes referred to as the "core science "because pupils must have a fundamental understanding of the subject.

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7

Oil

________ and water do not mix, and boiling water left on the burner evaporates, as you know from culinary experience.

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8

F

The (________= ma) law states that when an object's mass or acceleration increases, so does its force, and vice versa.

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9

succinct verbal

Law is a(n) ________ or mathematical description of a constant relationship between events under constant conditions.

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10

theory

A(n) ________ is a guiding principle that explains a collection of facts and /or the laws that govern them.

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11

Physical attributes

________ include color, melting point, and boiling point.

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12

methodical approach

A(n) ________ to study is known as the scientific method.

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13

hypothesis

A(n) ________ is a possible explanation for a set of facts.

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14

Elements

________ and compounds are both examples of substances.

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15

scientific method

The ________, which is a methodical approach to research, is used in all areas, including the social sciences.

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16

Chemists' measurements

________ are frequently employed in computations to obtain other quantities.

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17

Homogeneous

________ and heterogeneous mixtures are the two types of mixtures.

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18

gas burns

The statement "Hydrogen ________ in oxygen gas to form water "describes a chemical property of hydrogen.

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19

experimental findings

If an experiment disproves a theory, it must be rejected or adjusted to make it consistent with ________.

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20

Chemistry

________ is the study of matter and the processes that it goes through.

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21

Chemistry

________ is an old subject, but its contemporary basis was formed in the nineteenth century.

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