Atomics
Characteristics
Reactions
Reactions 2
Reactions 3
100
One of the following is a chemical change, NOT a physical change: splitting wood, melting ice, burning wood or dissolving salt in water.
What is burning wood?
100
In this image, where would a metal screw most likely fall?
Either in the honey or maple syrup.
100
A substance that enters a chemical reaction is called this.
What is a reactant?
100
When a bath bomb enters water, it performs this action.
What is a reaction?
100
This type of change in a substance's appearance is not a chemical change and is usually reversible.
What is a physical change?
200
Famous retired teacher and professor in the 1800s who made some of the first theories on atoms.
John Dalton
200
A rock with a mass of 128g and a volume of 32mL has a density of what?
4g/mL
200
This type of change occurs when a substance or multiple substances rearrange and a new substance is created.
What is a chemical change?
200
Daily BONUS:
These chemicals are the ones in every student's blood stream right now
a. PFATS b. PFABS c. PFAS d. P-TAS
PFAS, Per- and polyfluoroalkyl substances
200
Give an example of a molecule?
Write it out on the whiteboard at the front.
H2O, H2, O2, N2
300
True or false: left over atoms from a previous reaction can make molecules of other left over atoms?
True
300
We have learned a few different non-flammable gases in this class. Name 1 non-flammable gas:
Nitrogen, Carbon Dioxide, Neon
300
An expression in which symbols and formulas are used to represent a chemical reaction, as below.
X + X --> Y
A chemical equation
300
two or more elements chemical combined.
What is a Compound or a molecule
300
State the Law of Conservation of Mass.
What is "matter can not be created or destroyed in a chemical reaction"?
400
The atomic number of an element is its __________.
Number of Protons
400
True or False: all parts of a mixture are combined?
False
400
An increase in temperature will usually cause pressure to ________________.
Increase
400
In a closed system, there should be no change in...?
What is Mass?
400
This Contains 2 or more different atoms chemically combined, also categorized as a molecule
What is a Compound?
500
Give two pieces of evidence that a chemical change has taken place.
What is temp. change, color change, odor change, formation of a precipitate, formation of a gas.
500
This lighter than air gas filled the Hindenburg. Double points, what does its name mean?
What is Hydrogen? What is Water Maker?
500
The type of energy that a particle has when it is in motion
What is kinetic energy?
500
In a chemical reaction the substances to the right of the arrow are called this/these? (Y)
X + X --> Y
What is/are products?
500
Describe the observations happening that cause chemical reaction happening in this image:
Heat changes the atoms and molecules, creating new compounds and making the foods physical shape change.