7.6A /7.6B
Elements and Compounds
Elements and Compounds
the smallest particle of an element; made of elections, protons, and neutrons
What is an atom?
Anything that has volume
and mass
What is matter?
A substance that dissolves in another
substance to form a homogeneous mixture
What is a solute?
A measure of how far apart two objects are
What is distance?
Newton’s law stating that an object at rest
stays at rest or an object in motion stays in motion
until unbalanced forces act upon it; often referred
to as Newton’s first law of motion
What is Newton's Law of Interia?
A one- or two-letter notation used to
represent an atom of a particular element
What is a chemical symbol?
A change that involves one
substance being pulled apart or combined
with another substance to form a completely
different substance or substances
What is a chemical change?
A substance in which another substance
is dissolved to form a homogeneous mixture
What is a solvent?
The state of an object when it is not in motion
What is at rest?
Forces on an object that cause change in the motion
of the object
What is unbalanced forces?
A pure substance composed of the same
type of atom throughout
What is an element?
A change to a substance that occurs
without forming a new substance, such as a
change in size or state of matter
What is a physical change?
The measure of the amount of solute
that is dissolved in a given quantity of solvent
An object’s rate of change; calculated by dividing
the total distance an object traveled by the total time it took the object to travel
What is an average speed?
The tendency of a physical object to
remain still or continue moving unless force is applied
What is inertia?
The simplest unit of a chemical compound
that can exist; formed when two or more atoms join
together chemically
What is a molecule?
A characteristic that can be observed
or measured only when atoms rearrange
during a chemical change
What is a chemical property?
The process of reducing the ratio of
solute to solvent in a solution
What is dilution?
The rate of fixed speed per time
What is constant speed?
What is balanced forces?
A new substance with unique chemical
and physical properties formed when two or more
elements are chemically bonded during a chemical reaction
What is a compound?
A characteristic that can be observed
or measured without changing the substance
What is a physical property?
Containing less than the maximum amount
of solute for a given amount of solvent at a
constant temperature and pressure
What is an unsaturated solution?
The change in an object’s position with respect
to time and in comparison with the position of other
objects used as reference points
What is motion?
A 17-newton (17 N) force and a 25-newton (25 N) force are applied to a wagon at the same point in opposite directions. What would be the effect of these forces?
What is the wagon will move in the direction of the 25 N force?