Chapter 1 and 2: Test
A substance made up of atoms of two or more different elements jointed by chemical bonds
Compound
A liquid is boiled to produce a vapor that is then condensed back into a liquid
Dilstillation
Water and alcohol can be separated by...
Distillation
Depend on the amount of matter that is present in a sample (ex. volume and mass
Extensive Properties
A process that separates a solid from a liquid
Filtration
Sand and water can be separated by...
Filtration
No definite shape, nor definite volume
Gas
A vertical column in the periodic table, also known as a family of elements; they are categorized by a number followed then by a letter
Group
A vertical column in the periodic table, also known as a family of elements; they are categorized by a number followed then by a letter (there are 18)
Group
Depend on the type of matter present in a sample (ex. absorbency and density)
Intensive Property
Matter is not created nor destroyed in any chemical or physical change
Law of Conservation of Mass
Matter having no fixed volume and is not easily compressed
Liquid
No definite shape, but definite volume
Liquid
The amount of matter an object has
Mass
Two or more substances that are physically combined
Mixture
A change in a substance that does not involve a change in the identity of the substance
Physical Change
Can be observed or measured without changing the identity of the matter
Physical Property
Definite shape and definite volume
Solid
A homogeneous mixture of two or more substances uniformly dispersed throughout a single phase
Solution
Matter that has a uniform and definite composition
Substance
All of the following changes to metal are physical changes EXCEPT a) Rusting b) Melting c) Polishing d) Cutting e) Bending
a
In which stage do the particles move the slowest? a) solid b) gas c) liquid d) plasma
a
Matter is defined as anything that a) has mass and takes up space b) has energy c) can be weighed on a balance d) has a definite volume e) has a fixed volume and weight
a
The periodic table organizes all the element by their a) atomic number b) atomic mass c) name d) atomic structure
a
Which of the following is a true statement about compounds> a) They are pure substances b) They have variable compositions c) They have properties similar to those of their constituent elements d) They can be physically separated into their constituent elements
a
if 20 grams of aluminum reacts with 200 grams of bromide to form aluminum bromide, and no aluminum is left after the reaction, but 23 grams of bromine remained unreacted. how many grams of aluminum bromine were formed? a) 197g b) 220g c) 23g d) 180g
a
Which of the following is a chemical change? a) water boiling b) burning paper c) adding food coloring to water d) tearing a piece of paper
b
Which of the following is an example of a chemical property? a) Color b) The ability to rust c) Density d) Phase
b
Consider the chemical reaction in which carbon (C) reacts with oxygen gas (O2) to produce carbon dioxide. What mass of carbon dioxide (CO2) would be produced if 24 grams of carbon reacted completely with 64 grams of oxygen? a) 64g b) 130g c) 88g d) 40g
c
Consider the chemical reaction of water (H2O) being broken down to produce Hydrogen (H) and Oxygen (O). If we begin with 98.5g of water and produced 45 grams of Hydrogen, how much oxygen will be produced? a) 98.5g b) 45g c) 53.5g d) 143.5g
c
Which is an example of a solution? a) rice and water b) marbles and water c) sugar and water d) sand and water
c
Which of the following is NOT an example of matter? a) Water b) Water Vapor c) Heat d) Smoke e) Air
c
All of the following changes to a substance are chemical changes EXCEPT a) fermenting b) burning c) tarnishing d) boiling e) reacting
d
If 50 grams of sodium reacts with chlorine to form 126 grams of salt. How many grams of chlorine reacted? a) 126g b) 50g c) 176g d) 76g
d
Which of the following is a valid difference between a compound and a mixture? a) A compound is made up of more than one phase b) A mixture must be uniform in composition c) A mixture can only be separated into its components by chemical means d) A compound can only be separated into its components by chemical means
d
Which of the following is true for all chemical reactions? a) The total mass of the reactants increases b) The total mass of the products decreases c) The total mass of the products is greater than the total mass of the reactants d) The total mass of the reactants equals the total mass of the products
d
Which of the following CANNOT be classified as a pure substance? a) Table Slat b) Gold c) Sucrose (sugar) d) Nitrogen d) Air
e
Which of the following properties can only be determined through a chemical reaction? a) Melting Point b) Hardness c) Color d) Mass e) Explosiveness
e
