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Principles of Chemistry Flashcards | StudBud
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Principles of Chemistry
Principles of Chemistry
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Questions
30
Answers
1
What is the state symbol for a solution?
(s)
(S)
(aq)
(sl)
2
How does an atom of aluminum become an ion?
It gains 3 protons
It gains 3 electrons
It loses 3 electrons
It loses 3 neutrons
3
Boiling water is a physical change
False
True
4
The color of ink is a __________ ___________.
Physical Change
Chemical property
Physical property
Chemical Change
5
Trail Mix is a Homogeneous
False
True
6
Salad Dressing is Heterogeneous.
False
True
7
What is the symbol for a solid?
(aq)
(S)
(s)
(sl)
8
What does this warning symbol mean?
Irritant
Flammable
Toxic
Corrosive
9
What is the SI unit of mass?
Gram
Kilogram
Ounce
Pound
10
A type of matter formed by chemically joining two or more elements is known as a __________.
Solution
Suspension
Colloid
Compound
11
Burning Popcorn is a chemical change
False
True
12
What is empirical formula?
All of the above
True formula
Smallest whole number ratio of atoms presents in a molecule
Total number of atoms present in one molecule
13
Which metal is the least reactive?
Zinc
Copper
Magnesium
Iron
14
Which particles determine the atomic number of an element?
Protons and electrons
Protons only
Neutrons only
Neutrons and protons
15
When group 1 metals react with water they produce a metal ___________?
Oxide
Peroxide
Hydroxide
Sulfate
16
What is the state symbol for a liquid?
(aq)
(g)
(l)
(G)
17
At room temperature,most metals are _________.
Gases
Plasma
Liquids
Solids
18
Ice Melting is a Chemical change
True
False
19
Who created the Principles of Chemistry?
Dmitri Mendeleev’s
Charles Darwin
Princeton Landmark
GuapBoy
20
When twi or more substances are physically combined,the result is a(n)____________.
Chemical change
Element
Compound
Mixture
21
Lemonade is a heterogeneous
False
True
22
What is an atom’s nucleus made of?
Protons and neutrons
Protons and electrons
Neutrons only
Protons only
23
What is the state symbol for a gas?
(l)
(aq)
(G)
(g)
24
Making Water in a physical change
True
False
25
Which metal is most reactive?
Magnesium
Copper
Iron
Zinc
26
Which gas gives out a squeaky pop when a lit splint is placed in it?
Carbon dioxide
Oxygen
Hydrogen
Nitrogen
27
What does this symbol mean?
Flammable
Irritant
Toxic
Corrosive
28
Arranged the elements in the periodic table based on atomic number
Mosley
Mendeleev
Thopsom
Shrouding And Heiden ever
29
The total number of electrons in the outer shell of sodium Aaron’s is
2
3
1
8
30
The mass of the most common isotope of an element is known based on an element?
Mass number
Number of electoral
Average Atomic Mass
Atomic number
