Charge it up!
What is the charge for sodium?
Na+
Is baking a cake a physical or chemical change?
Chemical Change
What the definition of a Physical Property of Matter?
What is a Cation?
An element that looses electrons making an overall positive charge
What is the left side of the arrow called for a chemical reaction equation?
Reactants
What is the charge for Sulfur
S2-
A puddle evaporating. Chemical or Physical change?
Physical Change
Matter can neither be destroyed or created only rearranged
What is an Anion?
An element that gains electrons and the charge becomes negative overall
Balance the equation:
N2+ H2= NH3
What would the chemical formula be for Mg + Br (Dont forget your charges)
MgBr2
What is the difference between a Physical Property and a Physical Change?
Metal +Nonmetal
What 2 kinds of elements must bond together to form a Covalent compound
Nonmetal and nonmetal
Balance the Equation:
C3H8 + O2 = CO2 + H2O
C3H8 + 5O2 = 3CO2 +4H2O
What would the name be for this Ionic Compound?
Mg(OH)2
Magnesium Hydroxide
Is eating an example of a chemical or physical change
Both
What are 3 reasons identifying properties of matter is important?
-safety
-recycling
-identification/classifcation
How are Ionic charges held together?
opposite charges like a magnet
Al+ HCl = AlCl3 +H2
2Al+ 6HCl = 2AlCl3 + 3 H2
What would the name of this Covalent compound be?
N2O5
Dinitrogen Pentaoxide
Is burning a piece of toast a chemical or physical change?
Chemical Change
How many atoms of H are in the following compound
2Cl2(OH)4
8
What is the up and down row on the periodic table called?
group
C4H10 +O2 + CO2 +H2O
2C4H10 + 13O2 = 8CO2 +10H2O