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Periodic table and physical and chemical changes Flashcards | StudBud
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Periodic table and physical and chemical changes
Periodic table and physical and chemical changes
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#physical and chemical properties and #physical and chemical changes #Periodic table
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1
When a new substance is formed we know it is what type of change?
chemical
state
physical
density
2
One of the physical properties of metals is which of the following.
reactivity
flammability
conductivity
combustibility
3
The elements on the far right hand side of the periodic table are what?
metalloids
metals
non-metals
transition metals
4
Sarah dropped thumbtacks out of the container. What is the best tool to pick up her mess.
magnet
broom handle
vacuum cleaner
her hands
5
Which of the following is NOT a chemical symbol.
Cl
H20
Ca
O
6
Vulcans from Star Trek have green blood since they are Copper based beings. Humans are based on
hydrogen
oxygen
zinc
carbon
7
The chemical symbol for chlorine is
Ca
Cl
C
Cr
8
A highly reactive metal would be found in which group of the periodic table?
Group 1
Group 18
Group 17
Group 2
9
The number of protons in the atoms nucleus is represented by which number on the periodic table
atomic symbol
atomic mass
atomic name
atomic number
10
Which of the following supports the law of conservation of matter.
matter is destroyed by a chemical reaction
matter has no mass
matter is created by pounding aluminum
matter cannot be created or destroyed it only changes form.
11
An atom with identical properties but different masses due to neutron numbers.
neutral atoms
elements
compounds
isotopes
12
Charles Law states that a gas's volume does what?
increases when temperature decreases
increases when pressure decreases
increases when temperature increases
increases when pressure increases
13
The reactant side of a chemical equation must be ______ to the product side.
equal to
unaffected
greater
less than
14
The group on the periodic table that contains the least reactive elements is which?
Group 2
Group 7
Group 18
Group 1
15
Similar properties recur periodically when elements are listed by increasing atomic number.
Charles Law
Law of conservation of matter
Boyle's Law
The periodic law
16
Boyle's Law states what?
pressure decreases as temperature increases
pressure increases as volume decreases
pressure increases as temperature increases
pressure decreases as volume decreases
17
Which of the following is NOT a sign of a chemical reaction?
evaporation
formation of a gas
increase in temperature
odor
18
Which of the following is not a state of matter.
liquid
gas
solid
water
19
Which of the following is a chemical change?
freezing
evaporation
reactivity
condensation
20
Grams/cm3 is the unit for which of the following.
volume
speed
mass
density
21
The metric unit for volume is which of the following?
liters
grams
meters
ounces
22
Cubic centimeters (cm
3)
measure which of the following
mass
distance
speed
volume
23
NaCl is the formula for what?
vinegar
salt
pepper
baking soda
24
Which of the following represents a physical change.
reactivity
flammability
combustibility
ductility
25
Water reacts with salt and causes a chemical reaction. What happens to cause this?
surface area of water is increased
water is destroyed
a physical change takes place
chemical bonds break
