The Periodic Table
a pure substance consisting of only one type of atom,
What is an Element
H
What is Hydrogen
In a word equation, what are the elements/compounds on the LEFT side called?
What are Reactants
Give one reason why it's useful for chemists to understand different types of reactions
1) You can predict future reactions
2) Avoid making dangerous chemicals or explosions
Balance the following equation: Cl2(g) + H2(g) -> HCl(g)
What is Cl2(g) + H2(g) -> 2HCl(g)
Name one property of metals
Shiny (luster), Good conductor, Dense, and malleable (can shape them)
O
What is Oxygen
In a word equation, what are the elements/compounds on the RIGHT side called?
What are Products
In a simple composition the product is always a ____________
What is a compound
Balance the following equation: S8(s) + O2(g) -> SO2(g)
What is S8(s) + 8O2(g) -> 8SO2(g)
Name one property of non-metals
What is Dull, brittle, non-conductive, low density
Au
What is Gold
Do you always need more than one reactant or product to have a chemical reaction?
Yes, if you only have 1 product and 1 reactant than nothing has changed, therefore no chemical reaction has happened!
Most simple decomposition reactions are ___________ (think in terms of heat change)
What is endothermic
Balance the following equation: Mg(s) + HCl(l) -> MgCl2(l) + H2(g)
What is Mg(s) + 2HCl(l) -> MgCl2(l) + H2(g)
Where on the periodic table are non-metals located?
What is to the right and above the staircase
Kr
What is Krypton
Write the following chemical formula as a word equation 2H2 + O2 -> 2H2O
what element must always be present for a combustion reaction to happen?
What is oxygen
Balance the following equation: Ca(s) + S8(s) -> CaS(s)
What is 8Ca(s) + S8(s) -> 8CaS(s)
How many elements are on the periodic table?
What is 118
Yb
What is Ytterbium
Write the following chemical formula as a word equation 2Mg(s) + O2 -> 2MgO
What is 2 Magnesium + oxygen -> Magnesium oxide
This product is formed during a neutralization reaction
What is a salt and water
Balance the following equation: C3H8(g) + O2(g) -> CO2(g) + H2O(l)
What is C3H8(g) + 5O2(g) -> 3CO2(g) + 4H2O(l)