Chapter 1 - Chemistry: The Study of Change

get a hint

hint

margin of error

margin of error

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

Mass

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

force of gravity

The ________ acting on an object is known as weight.

intensive property

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

Chemists

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

Chemistry

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

Oil

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

F

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

succinct verbal

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

theory

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

Physical attributes

________ include color, melting point, and boiling point.

methodical approach

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

hypothesis

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

Elements

________ and compounds are both examples of substances.

scientific method

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

Chemists' measurements

________ are frequently employed in computations to obtain other quantities.

Homogeneous

________ and heterogeneous mixtures are the two types of mixtures.

gas burns

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

experimental findings

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

Chemistry

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

Chemistry

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