Show:
Water
Mixtures
Metals
Properties
Extra
100
What is the greatest source of freshwater on the planet
Glaciers
100
What are the three types of mixtures
homogenous, heterogenous, and colloid
100
What are 3 properties of metals
various answers
100
how are chemical properties different than physical properties?
various answers
100
What are the three types of ions
anion, cation, polyatomic ion
200
Is it possible to have 100% pure tap water? Why or why not?
No, water will disolve air
200
Why might a medicine bottle have shake before using on it
It is a heterogenous mixture and needs to be suspended
200
How are most metals found in the Earth
Ore
200
Define physical properties
anything we can observe or measure
200
define molar mass
the mass of 1 mol of a substance
300
What is the difference between direct and indirect use of water?
Direct is when you use the water, indirect is when someone else uses the water for you.
300
What is the difference between homogenous mixtures and colloids
homogenous is transparent, colloid is not
300
What is the process of smelting?
melting the metals out of ore
300
Give three examples of physical properties
mulitple answers
300
Define oxidation and reduction in terms of electrons
OIL RIG
400
Why is water considered to be polar?
Partially positive and partially negative
400
if a solvent cannot hold any more solute it is said to be ________.
saturated
400
What is the only metal that is a liquid at room temperature?
Mercury
400
Give two examples of chemical properties
Flammability and reactivity (answers may vary)
400
What ions are found in acids? In bases?
Acids - H+ Bases - OH-
500
Will water more likely disove sugar or salt
salt because salt is polar
500
How does gas solubility compare to solid solubility
it is affected oppositely by temperature
500
Define ductile and maleable
ductile - can be stretched into wires Maleable - can be hammered into shapes
500
Give an example of a chemical reaction
various answers
500
How is the law of conservation of matter related to balancing equations?
Unbalanced equations are a violation of the law of conservation of matter