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The SI system, also called the metric system, is used around the world. There are seven basic units in the SI system: the meter (m), the kilogram (kg), the second (s), the kelvin (K), the ampere (A), the mole (mol), and the candela (cd).

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the state or power of being reactive or the degree to which a thing is reactive

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A chemical property is any of a material's propertiesthat becomes evident during,

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Chemical changes occur when a substance combines with another to form a new substance

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A physical change is any change in matter that involves the substance going from one physical state to another.

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is defined as the ratio between mass and volume or mass per unit volume. It is a measure of how much stuff an object has in a unit volume (cubic meter or cubic centimeter).

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A physical property is any property that is measurable, whose value describes a state of a physical system.

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Weight is the name of the force exerted on an object due to the acceleration of gravity

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. A measure of the amount of matter in an object. Mass is usually measured in grams or kilograms.

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the curved upper surface of a liquid in a tube.

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Volume is the quantity of three-dimensional space occupied by a liquid, solid, or gas. Common units used to express volume include liters, cubic meters, gallons, milliliters, teaspoons and ounces.

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tter is anything that has mass and takes up space. If you are new to the idea of mass, it is the amount of stuff in an object

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The slope is a measure of the steepness of a line, or a section of a line, connecting two points.

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the most frequently occurring value in a group of measurements.

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in a group of measurements arranged from lowest to highest, the middle value if the number of measurements is odd.

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a science that deals with the structure and properties of substances and with the changes that they go through. : the structure and properties of a substance

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A molecule can have more than one symmetry axis; the one with the highest n is called the principal axis, and by convention is aligned with the z-axis in a Cartesian coordinate system.

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A dependent variable is the variable being tested in a scientific experiment.

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independent variable is defines as the variable that is changed or controlled in a scientific experiment.

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A law in science is a generalized rule to explain a body of observations in the form of a verbal or mathematical statement

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a theory is a well-established explanation for scientific data

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A synthetic coordination entity that closely approaches the properties of a metal ion in a protein and yields useful information concerning biological structure and function

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temperature is a measure of the "hotness" or "coldness" of a substance.

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Density is defined as the ratio between mass and volume or mass per unit volume. It is a measure of how much stuff an object has in a unit volume (cubic meter or cubic centimeter)

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Volume is the quantity of three-dimensional space occupied by a liquid, solid, or gas. Common units used to express volume include liters, cubic meters, gallons, milliliters, teaspoons and ounces.

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A measure of the amount of matter in an object. Mass is usually measured in grams or kilograms.

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