Ch. 1 Introduction to Chemistry

The initial starting substances in a chemical reaction are

The newly formed substance produced in a chemical reaction is

Substances react with heat or energy and new products are created that are different from the beginning reactants.

The science of composition,structure, properties and reactions of matter at the atomic level

The energy an object possesses due to its height or as stored energy is potential energy

A pure substance made of two or more elements chemically combined in a bond.

The measure of the Earth's gravitational attraction for matter.

A homogeneous mixture has composition and properties ________ throughout the substance

Energy can not be created nor destroyed but can change from one form to another is

A method of solving problems by observation followed by specific, logical, sequential steps is called scientific method.

pure substance is either an element or compounds.

A property that can be senses or observed without changing the substance is

Any object that possesses mass and occupies space is called

This is a combination of two or more kinds of matter, each reactant retaining its own composition and properties.

A heterogeneous mixture has composition and properties that are ______ throughout the substance.

The measure of the quantity of matter an object possesses is it's mass.

The ability to do work or the ability to cause a change is

The energy of an object in motion is called

These are the basic building blocks of all matter in the universe.