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Periodic Table Flashcards | StudBud
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Periodic Table
Periodic Table
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Answers
1
Select the best answer below for which objects are considered pure substances.
Gold
Elements
Salt
All of the above
2
What does the Law of Conservation of Matter say?
Matter cannot be created or destroyed.
Matter can be created but not destroyed.
Matter cannot be created or destroyed only changed.
Matter cannot be created but can be destroyed.
3
Atoms are made up of mostly what?
Electrons
Nucleus
Protons
Empty Space
4
A Neutron has what type of charge?
Neutral
Negative
Positive
5
The ability of a slice of pizza to react with stomach acid is......
Chemical Change
Physical Change
Digestion
Chemical Property
6
How many elements are on the periodic table of elements?
108
92
118
112
7
Captain Crunch with Crunchberries is an example of which of the following?
A homogeneous mixture.
A pure substance
An element
An inhomogeneous mixture
8
What can be found in the nucleus of an atom?
Electron and Nucleus
Neutron and Proton
Electron and Neutron
Proton and Electron
9
Name a chemical property of a wooden spoon.
Ability to Rot
Ability to Rust
Flammability
Both Answer 1 & 3
10
Which of the following is a physical change?
Washing a Shirt
Digesting Lunch
Pliers Turning Brown from Rusting
Bob on Wall
11
What is frying an egg considered to be?
Physical Change
Chemical Property
Physical Property
Chemical Change
12
Acids are solutions that have a pH level of
Below 7
Above 7
Below 0
Right at 7
13
Which of the following is a homogenous mixture?
Raisin Bran Cereal
Pond Water
Distilled Water
Deer Insides (when you gut it)
14
Protons have what type of charge?
Negative
Neutral
No Charge
Positive
15
If an atom has an Atomic Mass of 59 and has 32 Neutrons in it..what is the atoms atomic number?
32
59
27
91
16
How many electrons does the element gold have?
118
79
197
276
17
Name a physical property of sugar.
Flammability
Melting
Solubility
Combustibility
18
Which of the following is a chemical change?
Baking Cookies
Cleaning a Shirt
Putting Fluoride in Tap Water
Light Bulb Glowing
19
Which of the following is a mixture?
Air
Salt
Iron
Distilled Water
20
A physical change regarding paper would be...
Getting it wet.
Size of the paper
Burning it.
Flamability
21
A "Base" solution has a pH number of.....
0
7-14
7
0-7
22
A chemical property of an apple would be....
Rotting
Reactivity to oxygen
Reactivity to light
Digestion
23
Milk (6.5), Window Cleaner(8.5), Human Blood(7.4), Coffee(4.0) Which has the highest Base pH
Human Blood
Milk
Window Cleaner
Coffee
24
Which of the following is considered a heterogeneous mixture?
Tap Water
Milk
Beach
Ocean Water
25
Two or more elements together is the definition of a what?
Molecule
Mixture
None of the Above
Compound
26
What is the charge of an electron?
Negative
Neutral
Positive
Ionic
27
Breaking an object in half would be an example of...
Physical Change
Chemical Change
Physical Property
Chemical Property
28
What does the Atomic Number of an Atom stand for?
Number of Electrons in an Atom
Number of Neutrons in an Atom
Number of Protons in the Atom
Both 1 & 3
29
Salt has this as a physical property.
Solubility
Dissolve in water
Crush it
Combustibility
30
If it is on the KTM model then it has to be which of the following?
Both answers 1 & 3
Physical Property
Chemical Change
Physical Change
31
If a substance has a pH of 3.5 it is a...
Neutral
Soda
Base
Acid
32
Which of the following is a pure substance?
Distilled Water
Pond Water
Tap Water
Rain water
33
How many Neutrons are in this Atom's nucleus?
30
56
82
26
34
The part of an atom that has a positive charge>
Nucleus
Proton
Answers 1 & 3
Electron
