The Periodic Table
What is the lightest Element
Hydrogen
What material explodes in water
Sodium
Why must chemical equations be balanced
Atoms are never created or destroyed
What is the difference between a substance and a mixture
Substances have a definite composition
Mixtures have no definite composition
What is Mr. Gatts favorite metal
Silver
What is the most reactive element
Fluorine
What does group 17 react violently with
Group 1
What can you never change in a chemical equation
The Subscript
What is a compound
A mixture of two or more Elements
What will heat up faster:
100 mililiters of water 100 grams of metal
Metal
What are the elements along the atomic staircase called
Metalloids
What two chemicals make salt
Sodium and Chlorine
What is the first step of balancing chemical equations
Atom counts
What is a homogeneous mixture
a mixture that you cant see the separate parts
The magnetic metals
Iron,Cobalt, and nickle
What is a common trait with all the elements in the Actinide Series
They are radioactive
What happens when silver is left in oxygen
It tarnishes
What is the Law of Conservation of mass state
The mass of left and right side of the chemical equation must be equal
How would you get salt out of sand
Add water, filter, evaporate
What is metals ability to be pulled into a thin wire
ductile
How many elements are on the periodic table
118
What are the 4 signs of chemical reactions
Change of Color, Creation of a precipitate, Heat, and Production of Gas
Balance this equation:
P+O2-->P4O10
4P+5O2-->P4O10
Why can ink be removed from waters
Water evaporates, ink is left behind
What are the names of the metals in group one
Alkali metals