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16 terms

Chemistry Review Chapter 1

terms and information covered in chapter 1. Focus on properties and changes.
STUDY
PLAY
The smallest part of a compound that still has the physical and chemical properties of the compound is a(n) __________________.
molecule
A change of _____________________, such as a liquid changing to a gas, is an example of a physical change.
state
Both living and non-living things are composed of matter. Most matter can be broken down by _____________ reactions into basic units called elements.
chemical reactions
What is the smallest particle in an element that still has the same chemical properties?
atom
What are the indicators that a chemical change took place? ( hint: there are 5)
temperature change, fizzing/bubbling, noise or sound produced, odor, color change
Examples of chemical change
rusting, burning, baking a cake
Example of physical change
boiling, melting, change of state
Chemical properties
oxidizes in air, flammable
Physical properties
color, smell, density, melting, boiling point
A change in physical property of matter is an indicator that
a physical or a chemical change took place
All matter is made up of
atoms
Properties
make one substance different from another
Water at the temperature of 100 degrees C
is beginning to change to a gaseous state.
density is measured
grams per cubic milliliter
Mass expands, density
decreases
The best indicator that a chemical change occurred
the composition of a substance changed