AP Chemistry Chapter 1

AP Chemistry Chapter 1

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Section 1

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law of conservation of mass

Front

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Last updated

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Date created

Mar 1, 2020

Cards (30)

Section 1

(30 cards)

law of conservation of mass

Front

mass is neither created or destroyed

Back

paper chromatography

Front

Employs a strip of porous paper such as filter paper as the stationary phase

Back

weight

Front

the force exerted on an object by gravity

Back

homogeneous solution

Front

an equilibrium system where all reactants and products are in the same phase

Back

SI system

Front

International System of units based on the metric system and units derived from the metric system

Back

systematic error

Front

an error that always occurs in the same direction

Back

measurement

Front

a quantitative description that includes both a number and a unit

Back

physical change

Front

a change in the form of the substance, but not in its chemical composition: chemical bonds are not broken

Back

uncertainty

Front

the characteristic that any measurement involves estimates and cannot be exactly reproduced

Back

compound

Front

a substance with constant composition that can be broken down into elements by chemical processes

Back

accuracy

Front

the agreement of a particular value with the true value

Back

heterogeneous solution

Front

an equilibrium involving reactants and/or products in more than one phase

Back

significant figures

Front

the certain digits and the first uncertain digit of a measurement

Back

chemical change

Front

the change of substances into other substances through a reorganization of atoms

Back

states of matter

Front

the three different states of matter - solid, liquid, gas

Back

theory

Front

a set of tested hypotheses that gives an overall explanation of some natural phenomenon

Back

natural law

Front

a statement that expresses generally observed behaviour

Back

distillation

Front

a method for separating the components of a liquid mixture that depends on differences in the ease of vaporization of the components

Back

precision

Front

the degree of agreement among several measurements of the same quantity; the reproducibility

Back

Scientific method

Front

the process of studying natural phenomena, involving observations, forming laws and theories, and testing of theories by experimentation

Back

pure substance

Front

a substance with constant composition

Back

matter

Front

the material of the universe

Back

hypothesis

Front

a proposed explanation for an observation

Back

filtration

Front

a method for separating the components of a mixture containing a solid and a liquid

Back

model

Front

theory

Back

element

Front

a substance that cannot be decomposed into simpler substances by chemical or physical means

Back

mass

Front

the quantity of matter in an object

Back

solution

Front

a homogeneous mixture

Back

chromatography

Front

the general name for a series of methods for separating mixtures by employing a system with a mobile phase and a stationary phase

Back

random error

Front

an error that has an equal probability of being high or low

Back