Chemical Reactions
What type of reaction is this?
H2O2 --> H2 + O2
Decomposition
How many elements are there on the periodic table?
118
What are the three types of matter?
Solids, liquids, and gases
What is H in the periodic table?
Hydrogen
What molecule is H2O?
Water
What type of reaction is this?
H + O2 --> H2O
Composition
Is the periodic table mostly made up of metals, metalloids, or nonmetals?
Metals
John Dalton
What does K stand for in the Periodic Table?
Potassium
Smallest form of matter is
What type of reaction is this?
HgBr + CO2 --> CBr + HgO2
Double replacement
what are noble gases?
Noble gases are odorless, colorless, nonflammable, and monotonic gases that have low chemical reactivity.
What is the difference between a homogeneous mixture and a heterogeneous mixture?
Homogeneous mixtures are evenly mixed while in heterogeneous mixtures you can still see the parts and are not evenly mixed
If an element has 3 protons, then how many neutrons does it have?
3-- they are traditionally equal
Does water expand or contract as it freezes?
Expand
What type of reaction is this?
CH4 + O2 --> H20 + CO2
Combustion Reaction
what is the most recent element added to the periodic table?
Oganession
What state of matter is mercury in in room temperature?
Liquid
What is the symbol for Tin?
Sn
What do the elements C,H,O famously make up?
Carbohydrates
What type of reation is this?
CO2 + H --> CH + O2
Single Replacement
Who is the founder of the periodic table?
Dmitri Mendeleev
What are the two liquid elements in the periodic table at room temperature?
Bromine (Br) and Mercury (Hg)
What element is Au in the Periodic Table?
Gold
Who is the father of Chemistry?
Antoine Lavoisier