Compounds, Chemical Formulas, and Covalent Bonds
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by Kyle Sheahon
| 15 Questions
1
1 pt
Made up of 2 or more different elements.
Compound
Mixture
Molecule
Chemical
2
1 pt
A group of atoms held together by covalent bonding that acts as an independent unit.
Mixture
Chemical
Compound
Molecule
3
1 pt
Categorize the items below.
  • H2
  • H2O
  • N2
  • NaCl
  • Compound
  • Molecule
4
1 pt
A chemical bond formed when two atoms share one or more pairs of valence electrons.
Isotope bond
Ionic bond
Common bond
Covalent bond
5
1 pt
How does an atom (other than helium) with less than 8 valence electrons become stable?
6
1 pt
Which one has the stronger bond?

Nitrogen
Oxygen
7
1 pt
How many atoms make up this compound?

12
6
24
6
8
1 pt
How many valence electrons are shared in each covalent bond?
2
3
4
1
9
1 pt
What kind of chemical bonding is taking place with Bromide?

Triple bond
Quadruple bond
Single bond
Double bond
10
1 pt
A molecule that has a partial positive end and a partial negative end because of unequal sharing of electrons.
Compound
Nonpolar
Chemical equation
Polar
11
1 pt
Polar molecule dissolves into a _________________ molecule.
tripolar
nonpolar
chemical
polar
12
1 pt
A group of chemical symbols and numbers that represent the elements and the number of atoms of each element that make up a compound
Chemical equation
Chemical formula
Structural formula
Dot diagram
13
1 pt
How many atoms of oxygen are there in H₂O₂
2
4
1
3
14
1 pt
How many atoms of hydrogen are there in HCOOH₂ ?
1
5
3
2
15
1 pt
Why is water polar?
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