Atoms
Anything that has mass and takes up space.
What is MATTER?
A subatomic particle that must be shared, given, or recieved for atoms to form molecules.
What is the ELECTRON?
A property that is observable and measureable without changing the material.
What is a PHYSICAL PROPERTY?
The foramtion of a new material and an increase or decrease in energy.
What is a CHEMICAL CHANGE?
How close together or far apart particles are in a given volume. Calculated by mass / volume.
What is DENSITY?
Common name for H2O.
What is WATER?
What is TENSILE STRENGTH?
A physical change that is used in chemistry to show the presence of a substance, such as the presence of starch or a change in pH.
What is an IDICATOR?
This sub atomic particle has no charge.
Atomic Mass - Atomic Number = ?
What are NEUTRONS?
Common name for CO2.
What is CARBON DIOXIDE?
A scale that measures the acidity or alkalinity (base) of a water-based solution, ranging from 0 to 14.
What is the PH SCALE?
Is it a Physical or Chemical Change?
Melting, boiling, or freezing a material
PHYSICAL CHANGE
A modern atomic model known for its fast moving electrons that orbit the outide of the nucleus.
What is the ELECTRON CLOUD MODEL?
How many atoms of each element are in the following chemical formaula?
MgO2
ONE MAGNESIUM
TWO OXYGEN
Is it a Physical or Chemical Property?
Soluable/ Dissolves in water
PHYSICAL PROPERTY
Is it a Physical or Chemical Change?
A release of gases when an acid and base react
CHEMICAL CHANGE
This subatomic particle determines the element's identity on the periodic table.
What is the PROTON?
How many atoms of each element are in the following chemical formaula?
2C6H12O6
12 CARBON
24 HYDROGEN
12 OXYGEN
Is it a Physical or Chemical Property?
Conductivity of heat or electrcity
PHYSICAL PROPERTY
Heat energy being absorbed by a chemical reaction causing the temperatutre to decrease.
What is an ENDOTHERMIC REACTION?