Chemical Bonds

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Transcript Chemical Bonds

Slide 1

Jeopardy
Vocabulary

Elements
combine to
form
compounds

Chemical
bonds hold
compounds
together

More
Bonding
Chemistry

Metric
System

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Substances’
properties
depend on
their bonds


Slide 2

Vocabulary
100
The smallest part of an
element that still
contains the properties
of that element.

What is an atom?


Slide 3

Vocabulary
200
The 3 in NH3.

What is a subscript.


Slide 4

Vocabulary 300
Chemical bonds that form from
the attraction of positive and
negative ions.

What are ionic bonds?


Slide 5

Vocabulary
400
A substance made of atoms of
two or more different elements.

What is a compound?


Slide 6

Vocabulary
500

This special type of bond allows
electrons to move easily among atoms.

What is a metallic bond?


Slide 7

Elements combine to form compounds
100

The atoms of the elements in the
compound and how they are arranged
determine this.

What is the properties of the compound?


Slide 8

Elements combine to form compounds
200
The number of and type of atoms that glucose,
C6H12O6, has.

What is six carbon atoms, twelve hydrogen
atoms and six oxygen atoms?


Slide 9

Elements combine to form compounds
300
The parts of the atom that combine to
form different compounds with different
properties.

What are electron clouds?


Slide 10

Elements combine to form
compounds
400

The chemical formula for the mineral
Halite is NaCl. This is the ratio of sodium
to chlorine atoms in Halite.

What is 1:1?


Slide 11

Elements combine to form
compounds
500

This is the ratio of atoms
in the mineral Olivine.
What is 2:1:4?


Slide 12

Chemical bonds hold compounds
together
100
The type of compound that dissolves
easily in water and conducts electricity.
What is an ionic compound?


Slide 13

Chemical bonds hold
compounds together
200
This happens to electrons when
atoms bond.

What is they are shared or transferred?


Slide 14

Chemical bonds hold
compounds together
300
The way Nitrogen atoms are
held together in N2. (Type of
bond)

What is by a covalent bond?


Slide 15

Chemical bonds hold
compounds together
400
Two properties of compounds
with ionic bonds.

What is ionic compounds have extremely
high melting points and dissolve easily in
water? (they also are brittle, form crystals,
and conduct electricity when dissolved in
water)


Slide 16

Chemical bonds hold
compounds together
500
Two properties of covalent
bonds.

What is covalent bonds melt at
relatively low temperatures and
stay intact in water? (they also do
not conduct electricity when
dissolved in water)


Slide 17

Substances’ properties depend
on their bonds
100
This makes metals easy to form
into different shapes.

What is electrons move easily among
atoms in metals.


Slide 18

Substances’ properties depend on
their bonds

Daily Double!!!

200
Carbon has this ability because of
different bonds.

What is carbon can have different forms?


Slide 19

Substances’ properties depend on their bonds
300

The ratio of nitrogen (the large circle) to hydrogen (the
small circle) in ammonia.

What is 1:3?


Slide 20

Substances’ properties depend on their bonds
400

The chemical formula for benzene
(hint: it is made of carbon and
hydrogen).

What is C6H6?


Slide 21

Substances’ properties depend
on their bonds
500
Two characteristic properties of
compounds with metallic bonds.

What is metallic bonds make metals
melt at high temperatures and conduct
electricity? (also, metals can be
flattened into thin sheets or drawn into
wires, and are shiny)


Slide 22

More Chemistry
Facts
100

Three types of carbon substances.

What are diamond, graphite, and fullerene


Slide 23

More Chemistry Facts
200
How do you know that
hydrogen is a molecule by
looking at the diagram on this
slide?

What is a molecules is a group of atoms joined
together by a covalent bond? The ball and stick
model indicates this by the line between the two
circles. Since both atoms are the same, they must
be joined by covalent bonds. Therefore, it is a
molecule.


Slide 24

More Chemistry Facts
300
This is how you know sulfur is
the negative ion in Pyrite.

What is it comes last in the chemical
formula and/or is Sulfide with “ide” at the
end.?


Slide 25

More Chemistry Facts
400

What you know is probably true about
methane (CH3) and the elements that make
it?

It is made of carbon and hydrogen. It has one
carbon atom and three hydrogen atoms. It
has unique properties it is not like the
elements that it is made of.


Slide 26

More Chemistry Facts
500
The three types of chemical
bonds and how they form.

Chemical bonds form when electrons in the electron
clouds of two or more atoms interact.
Ionic bonds form when atoms transfer electrons.
Covalent bonds form when atoms share electron
pairs. Covalent bonds form individual molecules.
Metallic bonds are bonds in which metal atoms
share electrons equally in all directions.


Slide 27

Metric system
100
Kg in 1000 grams.

What is 1 Kilogram?


Slide 28

Metric system
200
Units of density of a substance
that has a mass of 30 grams and
a volume of 15 cm3

What is 2g/cm3?


Slide 29

Metric system
300
Another name .001 second.

What is a millisecond?


Slide 30

Metric system
400
Kilometers in five thousand
meters.

What are five kilometers?


Slide 31

Metric system
500
A solid substance can displace 10ml of water.
It has a mass of 5g (grams).
The density of water is 1g/cm3
Will it sink or float in water? Is it more or less
dense than water?

Daily Double!!!

What is it will float because it has a
density of 0.5 g/cm3 which is less than
water?