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Molecule and Compound Essentials
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Molecule and Compound Essentials
Molecule and Compound Essentials
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1
Question
What is a molecule?
Page 1
Answer
Atoms from the same or different elements chemically bonded together.
2
Question
What types of elements can the atoms in a molecule come from?
Page 1
Answer
Same element or two or more different elements.
3
Question
What is an example of a molecule made from the same element?
Page 1
Answer
Oxygen gas (O₂).
4
Question
What is an example of a molecule made from different elements?
Page 1
Answer
Carbon dioxide gas (CO₂).
5
Question
What is a monoatomic molecule?
Page 1
Answer
Composed of a single atom only.
6
Question
What are examples of monoatomic molecules?
Page 1
Answer
He, Ne, Xe, Ar, Kr.
7
Question
What is a diatomic molecule?
Page 1
Answer
Composed of only two atoms from the same or different elements.
8
Question
What are examples of diatomic molecules from the same element?
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Answer
H₂, N₂.
9
Question
What is an example of a diatomic molecule from different elements?
Page 1
Answer
HCl.
10
Question
What is a polyatomic molecule?
Page 1
Answer
Consists of more than two atoms from one or more elements.
11
Question
What is an example of a polyatomic molecule from one element?
Page 1
Answer
O₃ (ozone).
12
Question
What is an example of a polyatomic molecule from multiple elements?
Page 1
Answer
Sucrose (C₁₂H₂₂O₁₁).
13
Question
What is an ion?
Page 1
Answer
An atom with a positive or negative charge.
14
Question
How does an atom become positively charged?
Page 1
Answer
By losing electrons, forming a cation.
15
Question
How does an atom become negatively charged?
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Answer
By gaining electrons, forming an anion.
16
Question
What process forms an ion?
Page 1
Answer
A neutral atom loses or gains one or more electrons.
17
Question
What is a cation?
Page 1
Answer
Positive ion formed by losing one or more electrons.
18
Question
What are examples of cations?
Page 1
Answer
Na⁺, Mg²⁺, Ca²⁺.
19
Question
What is an anion?
Page 1
Answer
Negative ion formed by gaining one or more electrons.
20
Question
What are examples of anions?
Page 1
Answer
Cl⁻, O²⁻, N³⁻.
21
Question
What is a monoatomic ion?
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Answer
Ion composed of a single atom.
22
Question
What are examples of monoatomic ions?
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Answer
Na⁺, Mg²⁺, Ca²⁺.
23
Question
What is a polyatomic ion?
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Answer
Ion composed of more than one type of atom.
24
Question
What are examples of polyatomic ions?
Page 1
Answer
NH₄⁺, NO₃⁻.
25
Question
What is a compound?
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Answer
Substance made of two or more elements chemically combined.
26
Question
What is an ionic compound?
Page 1
Answer
Consists of a cation and an anion.
27
Question
What is a molecular compound?
Page 1
Answer
Consists of two or more nonmetals.
28
Question
What is an example of an ionic compound?
Page 1
Answer
NaCl (Sodium Chloride).
29
Question
What is another example of an ionic compound?
Page 1
Answer
Mg(OH)₂ (Magnesium Hydroxide).
30
Question
What is an example of a molecular compound?
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Answer
H₂O (Water).