Definitions
What is matter?
Anything that has mass and takes up space (AKA volume)
What is the chemical formula? - sodium chloride
NaCl
What is the chemical name? - MgCl2
magnesium chloride
0.0763 L = ____?____ mL
76.3 mL
What is the most accurate measurement of matter?
Mass
What is a Heterogeneous Mixture?
A mixture that has more than one composition throughout (i.e. consists of two or more states of matter)
What is the chemical formula? - disilicon hexabromide
Si2Br6
What is the chemical name? - P2O5
Diphosphorus pentoxide
4.456 Hg = ____?____ g
445.6 g
Give an example of a homogeneous mixture.
Examples: Salt water, coffee, corn syrup, air...
What is the Conservation of Mass?
Mass cannot be created nor destroyed.
What is the chemical formula? - lead (II) hydroxide
Pb(OH)2
What is the chemical name? - NaClO4
sodium perchlorate
97240 mm = ____?____ Dm
9.7240 Dm
Explain the difference between a physical change and chemical change.
What are Reactants?
The substances at the beginning of a chemical reaction that react together.
What is the chemical formula? - manganese (II) bromide
MnBr2
What is the chemical name? - AuCl3
Gold (III) chloride
34.2 OC = ? K
307.35 K
Describe how the particles in each state of matter are arranged?
Solid - tightly packed
Liquid - loosely packed, particles can slide past each other
Gas - particles are spread far apart, occasionally bump into each other
What are Chemical Properties?
A characteristic that describes how the substance interacts with other substances to produce new substances.
What is the chemical formula? -ammonium phosphate
(NH4)3PO4
What is the chemical name? - FeCO3
Iron (II) carbonate
312 K = ? OC
38.85 OC
What happens to the particles of a liquid as it becomes a gas?
Particles speed up and spread apart, breaking the attractive forces that keep them as a liquid.