Signs of a Chemical Change
What sign of a chemical change can be detected by touch?
Temperature change
NaOF - this represents a what?
Compound
What safety equipment protects your eyes?
What is goggles.
What Senses of observation should never be used in a chemistry lab?
Touch, Taste
They are both pure substances.
What sign of a chemical change, can you detect with your eyes?
Color Change
O - this represents a what?
An element
What Safety Equipment, or rule must be followed in regards to your feet?
Must wear close toed shoes
What Senses can you use in a chemistry lab?
Sight, Smell, Hearing
How are elements and compounds different?
One has one type of atom, and the other has multiple atoms
What sign of a chemical change might cause you to squint your eyes.
Production of Light
An element is what kind of substance?
A pure substance
On lab days what kind of leg wear are we allowed to wear?
Pants. not shorts.
if you are working with dangerous chemicals how do you protect your hands?
Gloves
Can a mixture be broken down easily?
yes
when something solid is produced when two chemicals are mixed together it is called a
Precipitate
What kind of substance is a compound
a pure substance
True or false. A lab coat should be worn on lab day if coach decker says so?
True
Their Chemical symbol.
How do you break down a compound.
chemically separating them
What is the only chemical change that you can detect with eyes, ears, and smell?
Gas Production
When you combine elements chemically they create a what?
Compound.
What is the most important rule in labs in coach deckers class? (answer choices)
A. Safety First
B. Listen to Coach Deckers instructions
C. Have fun
D. Do Science.
What is the chart called that has all the elements on it?
Periodic Table.
BONUS:::::
What sport does coach decker help with?
BASEBALL. DUH.