You need to finish your review sheet from yesterday ON YOUR OWN There is no talking for the beginning of class Im going to walk around and see what you have done to take a grade so get busy Give me five properties of ID: 229929
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Slide1
Today is October 3, 2012
You need to finish your review sheet from yesterday ON YOUR OWN!
There is no talking for the beginning of class
I’m going to walk around and see what you have done to take a grade so get busySlide2
Give me five properties of METALS
Shiny
Good Conductor of heat and electricity
Ductile
Malleable
High Melting pointSlide3
Give me five properties of NONMETALS
Dull
Poor Conductor of heat and electricity
Brittle
Low Melting point
Half are gases Slide4
Give me two examples of Metalloids
and tell me properties of
Metalloids
:
Metalloids have properties of both metals and nonmetals
Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, Polonium, AstatineSlide5
What is the definition of an
element
?
An element is a pure substance that cannot be broken down into smaller substances by ordinary meansSlide6
What elements
are the
most important
on our earth? (Circle the one that is most important for living things)
Nitrogen
Oxygen
Hydrogen
CarbonSlide7
What are the two compounds
that we
have been
talking about A LOT
?
What
elements
are in those
compounds
?
Salt- Sodium and Chlorine
Water- Hydrogen and OxygenSlide8
Give me TWO examples of
chemical change
:
Rusting
Burning
Toasting
Cooking
BakingSlide9
Give me TWO examples of
physical change
:
Melting
Dissolving
Boiling
Breaking
TearingSlide10
Explain what a
“State of Matter”
Change is.Slide11
How does a
compound
differ
from an
element?
Slide12
What TWO elements
is the
atmosphere
made out of? And what
percentage?
78% Nitrogen
21% OxygenSlide13
The property of metals that makes them easily pounded or pressed into new shapes is called –
a.
ductile.
b.
Bending point
c. malleability.
d. melting point.Slide14
The property of metals that makes them easily pounded or pressed into new shapes is called –
a.
ductile.
b.
Bending point
c. malleability.
d. melting point.Slide15
In the modern periodic table, the elements are arranged - -
A
by atomic number
B
alphabetically
C
oxidation number D by number of atomsSlide16
In the modern periodic table, the elements are arranged - -
A
by atomic number
B
alphabetically
C
oxidation number D by number of atomsSlide17
Which symbol represents an element with an atomic number of 6?
A
helium
B
hydrogen
C Carbon D boronSlide18
Which symbol represents an element with an atomic number of 6?
A
helium
B
hydrogen
C Carbon D boronSlide19
What is the correct chemical symbol for the element Aluminum?
A
AL
B
Am
C
Al D alSlide20
What is the correct chemical symbol for the element Aluminum?
A
AL
B
Am
C Al D alSlide21
The simplest pure substances are - - A
cells
B
elements
C
compounds
D symbolsSlide22
The simplest pure substances are - - A
cells
B
elements
C
compounds D symbolsSlide23
Which of the following is not an element?
A H
2
B
gold
C
oxygen D WaterSlide24
Which of the following is not an element?
A H
2
B
gold
C oxygen D WaterSlide25
Which element found in Earth’s atmosphere is essential for most living things? a
. Carbon
b
. Iron
c
. Oxygen
d. ArgonSlide26
Which element found in Earth’s atmosphere is essential for most living things? a
. Carbon
b
. Iron
c
. Oxygen d. ArgonSlide27
Which of the following is not a compound?
a
.
H
2
0
b. NaCl c.
CO
2
d
.
O2Slide28
Which of the following is not a compound?
a
.
H
2
0
b. NaCl c.
CO
2
d
.
O
2Slide29
An element on the periodic table is described as being a solid, shiny, and a poor conductor of
heat. This
element is most
likely:
A
a metal
B a metalloid C a nonmetal D
a compoundSlide30
An element on the periodic table is described as being a solid, shiny, and a poor conductor of
heat. This
element is most
likely:
A
a metal
B a metalloid C
a nonmetal
D
a compoundSlide31
An element on the periodic table is described as being a brittle, poor conductor and located on the right side of the periodic table. This
element is most
likely:
A
a metal
B
a metalloid C a nonmetal D a compoundSlide32
An element on the periodic table is described as being a brittle, poor conductor and located on the right side of the periodic table. This
element is most
likely:
A
a metal
B
a metalloid C a nonmetal D
a compoundSlide33
Which of the following is NOT a physical property of metals?
A
shiny luster
B
ductile
C
brittle D good conductorsSlide34
Which of the following is NOT a physical property of metals?
A
shiny luster
B
ductile
C
brittle D good conductorsSlide35
About two-thirds of the elements on the periodic table are ______________.
A
metals
B
nonmetals
C
metalloids D in group 3Slide36
About two-thirds of the elements on the periodic table are ______________.
A
metals
B
nonmetals
C metalloids D in group 3Slide37
Which of the following is not a compound?
a
.
water
b.
salt
c. gold
d.
carbon dioxide
Slide38
Which of the following is not a compound?
a
.
water
b.
salt
c. gold
d.
carbon dioxide
Slide39
The property of metals that makes says they can easily be made into wires
–
a.
ductile.
b.
Bending pointc. malleability.d. melting point.Slide40
The property of metals that makes says they can easily be made into wires
–
a.
ductile.
b.
Bending pointc. malleability.d. melting point.Slide41
Which of the following is NOT a physical property of NONMETALS?
A
poor conductor
B
dull
C
brittle D shiny lusterSlide42
Which of the following is NOT a physical property of NONMETALS?
A
poor conductor
B
dull
C
brittle
D shiny lusterSlide43
Which of the characteristics in the box above describe nonmetals?
A
I only
B
I and II only
C
I, II, and IV only D III only
I. dull
II. brittle
III. conductor
IV. non-ductileSlide44
Which of the characteristics in the box above describe nonmetals?
A
I only
B
I and II only
C
I, II, and IV only D III only
I. dull
II. brittle
III. conductor
IV. non-ductileSlide45
The substances shown in the box above are all made from one group of elements. Where would you find the elements from these substances on the periodic table?
A
on the left side
B
on the right side
C
along the stair step line D mixed throughout the periodic tableSlide46
The substances shown in the box above are all made from one group of elements. Where would you find the elements from these substances on the periodic table?
A
on the left side
B
on the right side
C
along the stair step line D mixed throughout the periodic tableSlide47
Which of the following is an example of a chemical change?
A
grinding salt crystals to a powder
B
the evaporation of water from a mud puddle
C an egg cooking
D paper tearingSlide48
Which of the following is an example of a chemical change?
A
grinding salt crystals to a powder
B
the evaporation of water from a mud puddle
C an egg cooking D paper tearingSlide49
Which of the following is an example of a physical change
?
A
a
bike rusting
B water boiling C an egg cooking D paper burningSlide50
Which of the following is an example of a physical change
?
A
a
bike rusting
B water boiling C an egg cooking
D paper burningSlide51
Element
% of Dissolved Salts in Ocean Water Sample
Chlorine
55.0%
Sodium
30.6%
Calcium
1.2%
Potassium
1.1%
Sulfur
3.7%
Magnesium
7.7%
Other
0.7%
As part of a field investigation at the Ocean Science Institute, Steven analyzed a sample of ocean water. The table above summarizes the relative amounts of dissolved salts found in the sample. What percentage of the dissolved salts are substances
other than
chlorine and sodium? (that means your have to do some math!)