What is a Pure Substance which cannot be broken down into smaller particles by Chemical Means?
100
What is the Compound of Water?
What is Hydrogen & Oxygen?
100
What is a Mixture?
What is a Combination of two or more Substances that are NOT Chemically Combined?
100
What is Dry Ice?
What is Frozen Carbon Dioxide?
200
What are the two particles with charges in the Center of an Atom ?
What are Protons & Neutrons?
200
They are Shiny?
What is Metals?
200
What Compound is formed from Sodium & Chlorine?
What is Table Salt?
200
A mixture of Metals, like Steel, is known as what?
What is an Alloy?
200
What term is given to the Evaporation of Dry Ice? (one word)
What is Sublimation?
300
How many Electrons are in the First Shell?
What is No More than 2?
300
Name two Physical Properties of Metals?
What are: Ductile-- pull into wire
Malleable-- easy to bend?
300
What is Polar?
What is substances which have Opposite Charges?
300
The amount of Solute in a particular substance is known as?
What is Concentration?
300
Why does Dry Ice not Float?
What is Dry Ice has more Density than Water?
400
How many Electrons are in the Second Shell?
What is No More than 8?
400
What are Elements with dull finishes and poor conductors of electricity?
What are Non-Metals?
400
What are Adhesion & Cohesion?
What is : Adhesion-- sticks to other things
Cohesion-- sticks to itself?
400
What is a mixture with particles suspended in the solution which do not allow light to pass through?
What is a Colloid?
400
What Two Properties of Dry Ice make it suitable in Fire Extinguishers?
What are: Takes away Oxygen for Burning and Vapors settle Downward towards the Base of the Fire?
500
What is the Outer Shell called?
What is Valence?
500
Your friend tells you that a shiny element has to be a Metal. Explain why your "friend" thinks the Vikings will be in the Super Bowl.
What is some Metalloids are shiny?
500
Table sugar is a compound made of Carbon, Hydrogen, and Oxygen. If sugar contains 41.86% Carbon and 6.98% Hydrogen, what percentage of sugar is Oxygen?
(20 seconds-- no calculator)
What is 51.16%?
500
Identify the Solute and Solvent in a Solution made of 15mL of Oxygen and 5 mL of Helium?
What is: Solute-- Helium; Solvent-- Oxygen?
500
How did the "Bubble Machine" work?
What is: (1) put warm water & chunks of dry ice in bottom container (2) Tighten Lid (3) put Bubble Solution onto Paper Towel at top of Pipe?