Term
WHICH OF THE FOLLOWING IS NOT A PHYSICAL CHANGE?
A. DISSOLVING SUGAR IN WATER
B. BURNING GASOLINE IN AN ENGINE
C. EVAPORATING SEA WATER FOR SALT
D. SLICING A PIECE OF BREAD |
|
Definition
| B. BURNING GASOLINE IN AN ENGINE |
|
|
Term
WHICH OF THE FOLLOWING IS NOT A PROPERTY OF A GAS?
A. HAS A DEF. SHAPE
B. HAS NO DEF. VOLUME
C. ASSUMES SHAPE OF ITS CONTAINER
D. EASILY COMPRESSIBLE |
|
Definition
|
|
Term
WHICH OF THE FOLLOWING IS NOT A PHYSICAL PRPERTY OF SUCROSE?
A. SOLID AT ROOM TEMP
B. DECOMPOSES WHEN HEATED
C. DISSOLVES IN WATER
D. TASTES SWEET |
|
Definition
| B. DECOMPOSES WHEN HEATED |
|
|
Term
WHICH IS TYPICALLY IN A DIFF. PHYSICAL STATE THAN THE OTHERS AT ROOM TEMP?
A. SALT
B. SUGAR
C. FLOUR
D. WATER |
|
Definition
|
|
Term
PHYSICAL STATE: GAS
DEF SHAPE:
DEF VOLUME:
EASILY COMPRESSIBLE |
|
Definition
DEF SHAPE: NO
DEF VOLUME: NO
EASILY COMPRESSIBLE: YES |
|
|
Term
PHYSICAL STATE: LIQUID
DEF SHAPE:
DEF VOLUME:
READILY COMPRESSIBLE: |
|
Definition
DEF SHAPE: NO
DEF VOLUME: YES
READILY COMPRESSIBLE: NO
|
|
|
Term
PHYSICAL STATE: SOLID
DEF SHAPE:
DEF VOLUME:
READILY COMPRESSIBLE:
|
|
Definition
DEF SHAPE: YES
DEF VOLUME: YES
READILY COMPRESSIBLE: NO
|
|
|
Term
CHLORINE IS A COLORED GAS
TRUE OR FALSE |
|
Definition
|
|
Term
| ETHANOL AND BROMINE BOIL AT A LOWER TEMPERATURE THAN WHAT ? |
|
Definition
|
|
Term
| HOW CAN YOU SEPARATE A MIXTURE OF SALT AND WATER ? |
|
Definition
DISTILLATION
OR
EVAPORATION |
|
|
Term
| WHAT IS A MIXTURE OF ONE PHASE, AND WHEN ALL THE COMPONENTS ARE EVENLY DISTRIBUTED? |
|
Definition
|
|
Term
DETERMINE IF THE FOLLOWING ARE HOMO/HETERO GENEOUS:
A. GASOLINE
B. CHUNKY PEANUT BUTTER
C. OIL&VINEGAR SALAD DRESSING
D. ORANGE SODA |
|
Definition
A. HOMOGENEOUS
B. HETEROGENEOUS
C. HETEROGENEOUS
D. HOMOGENEOUS |
|
|
Term
DETERMINE IF THESE ARE PURE SUBSTANCES OR MIXTURES:
A. ETHANOL
B. VINEGAR
C. MOTOR OIL
D. HELIUM |
|
Definition
A. PURE S
B. MIXTURE
C. MIXTURE
D. PURE S |
|
|
Term
| ETHANOL IN WATER IS WHAT KIND OF SOLUTION? |
|
Definition
|
|
Term
| SUCROSE IN ETHANOL IS WHAT KIND OF SOLUTION? |
|
Definition
|
|
Term
| CARBON IN IRON IS WHAT KIND OF SOLUTION? |
|
Definition
|
|
Term
| OXYGEN IN WATER IS WHAT KIND OF SOLUTION? |
|
Definition
|
|
Term
WHAT ELEMENTS MAKE UP CHLOROFORM
CHCl3 |
|
Definition
| Carbon. Hydrogen, and Chlorine |
|
|
Term
Name the Elements to Symbols:
a. Pb
b. K
c. Au
d. Fe |
|
Definition
a. lead
b. potassium
c. gold
d. iron |
|
|
Term
Name symbols to elements:
a. chlorine
b. sodium
c. silver
d. carbon |
|
Definition
|
|
Term
which isn't an element:
copper, sulfur, ammonia, or helium |
|
Definition
|
|
Term
which is a chemical change:
a. gasoline boils
b. lead added to gasoline
c. gasoline burning
d. gasoline poured into a tank |
|
Definition
|
|
Term
physical/chemical:
a. dew dried by sun
b. dark cloth faded by sunlight
c. grape juice turned in to wine
d. soap dissolved in water |
|
Definition
a. physical
b. chemical
c. chemical
d. physical |
|
|
Term
If 44 g of CO2 react completely with 18 g of H2O what is the mass of the carbonic acid formed ?
|
|
Definition
|
|
Term
| in an engine, octane combines with O2 to form CO2 and H2O. If 22.8 g of octane combine completely with 80 g of O2 to form 70.4 g of CO2 what mass of water is formed? |
|
Definition
|
|
Term
a liquid is a form of matter that
a. flows
b. easily compressed
c. has no def. volume
d. has a def. shape |
|
Definition
|
|
Term
Examples of physical changes are:
a. freezing/cutting
b. cutting/grinding
c. boiling/condensing
d. all of the above |
|
Definition
d. all of the above:
freezing/cutting
cutting/grinding
boiling/condensing |
|
|
Term
which is not a physical property of water?
a. noiling point of 100oC
b. colorless liquid
c. able to dissolve table salt
d. separates into H and O |
|
Definition
| d. separates into H and O |
|
|
Term
which cant be classified as a substance?
table salt, air, iron, or sulfur |
|
Definition
|
|
Term
example of change of state is :
a. boiling water to form a vapor
b. opening a walnut
c. preparing hardboiled egg
d. all of the above |
|
Definition
| boiling water to form a vapor |
|
|
Term
the mass of the reactants is always greater than the mass of products.
true/false? |
|
Definition
|
|
Term
mass of products of always greater than mass of reactants
true/false? |
|
Definition
|
|
Term
there is no relationship between mass of reactants and products
true/false? |
|
Definition
|
|
Term
mass of products = mass of reactants
true/false? |
|
Definition
|
|
Term
| in a chemical equation, the arrow means...? |
|
Definition
|
|
Term
| mixtures are a ____ of two or more substances |
|
Definition
|
|
Term
| the simplest forms of matter are the _____ |
|
Definition
|
|
Term
| the composition of heterogeneous and homogeneous mixtures may ______ |
|
Definition
|
|
Term
| the formula for potassium hydroxide (KOH) contains the elements ______, ______, _____. |
|
Definition
potassium
oxygen
hydrogen |
|
|
Term
| matter that flows but has a definite volume |
|
Definition
|
|
Term
| amount of matter that an object contains |
|
Definition
|
|
Term
| starting substances in a chemical reaction |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| part of a system with uniform composition and properties |
|
Definition
|
|
Term
| alters a substance without changing its chemcial composition |
|
Definition
|
|
Term
| matter w/ a definite shape and volume |
|
Definition
|
|
Term
substances formed in chemical reaction
|
|
Definition
|
|
Term
| anything that takes up space and has mass |
|
Definition
|
|
Term
all are physical properties of a substance in the liquid state except
definite volume
able to flow
not easily compressed
definite shape |
|
Definition
|
|
Term
which doesn't fit
solid, gas, liquid, reactant |
|
Definition
|
|
Term
| chemical symbol for sodium is..? |
|
Definition
|
|
Term
| a basketball has more mass then a golf ball because |
|
Definition
| the bball takes up more space |
|
|
Term
a gas is a form of matter that
a. has a def. volume
b. is generally a liquid/solid at room temp
c. takes shape/volume and container
d. difficult to compress |
|
Definition
| c. takes shape/volume of its container |
|
|
Term
homogeneous mixtures:
a. can consist of liquids only
b. consist of two or more phases
c. have an unvarying composition
d. are known as solutions |
|
Definition
|
|
Term
a compund
a. is a pure substance
b. has a variable composition
c. can be physically separated into its elements
d. has properties similar to those of its elements |
|
Definition
|
|
Term
physicial properties of a substance unclude
a. color/solubility
d. melting/boiling points
c. change in mass occurs
d. all of the above |
|
Definition
|
|
Term
when iron and oxygen combine to form oxide
a. physicial change occurs
b. change of state occurs
c. change in mass occurs
d. chemical change occurs |
|
Definition
|
|
Term
| during chemical/physical changes, substances absorb or give off _______. |
|
Definition
|
|
Term
| during _____, a liquid is boiled to produce a vapor that is then condensed again to a liquid. |
|
Definition
| evaporation or distillation |
|
|
Term
| mixtures differ from pure substances because mixtures have a ______ composition |
|
Definition
|
|
Term
| when iron and sulfur combine to form iron sulfide, a ______ change takes place |
|
Definition
|
|
Term
| a _____ property is a quality of a substance that can be observed or measured without changing the composition of the substance. |
|
Definition
|
|
Term
| Elements combine chemically to form ______. |
|
Definition
|
|
Term
| Fe is the chemical symbol for the element _______. |
|
Definition
|
|
Term
| A ______ mixture has a completely uniform composition. |
|
Definition
|
|
Term
| In any physical or chemical change, mass is _____. |
|
Definition
|
|
Term
| In a chemical reaction, the new substances formed are called ______. |
|
Definition
|
|
