Compounds Answers
0 verified answers1 views
1
Free Preview
There are several ways to model a compound. One type of model is shown.
A
CHOB
C4H11O2C
C6H12O2D
C6H9O2
Free Preview
Which is the best description of a molecule?
A
A molecule of an element is composed of at least two types of atoms.B
A molecule of a compound is composed of only one atom.C
A molecule of a compound is composed of at least two atoms.D
A molecule of an element is composed of exactly two types of atoms.3
Which statement describes how chemical formulas, such as H2O, represent compounds?
A
They show the types of molecules that make up an atom.B
They show the elements that make up a compound.C
They show the three-dimensional shape of a molecule.D
They show the types of bonds that exist between elements.4
How many atoms of each element are in 4Na3PO4?
A
3 sodium, 1 phosphorus, 4 oxygenB
4 sodium, 4 phosphorus, 4 oxygenC
12 sodium, 1 phosphorus, 4 oxygenD
12 sodium, 4 phosphorus, 16 oxygen5
Two models of the same compound are shown.
A
Model A shows the types of elements in the compound, but Model B does not.B
Model A shows the total number of atoms in the molecule, but Model B does not.C
Model A shows the three-dimensional shape of the molecule, but Model B does not.D
Model A shows the number of atoms of each element in the molecule, but Model B does not.6
There are several different models that represent compounds. One type of model is shown.
A
a structural formulaB
a chemical formulaC
a space-filling modelD
a ball-and-stick model7
Which statement correctly describes why a compound is a pure substance?
A
A compound is not a pure substance because each of its molecules is made up of the atoms of two or more different elements.B
A compound is a pure substance because its molecule cannot be broken down into simpler particles by physical means.C
A compound is not a pure substance because it is not an element, and only elements are pure substances.D
A compound is a pure substance because it consists of two different elements, which are pure substances.8
Carl makes the table below to determine the number of atoms of each element in the chemical formula 4Ca(ClO3)2.
A
He did not multiply the calcium atoms by the subscript 2.B
He did not add the coefficient 4 to the chlorine and oxygen atoms.C
He did not add the subscript 2 to the calcium atoms.D
He did not multiply the chlorine and oxygen atoms by the coefficient 4.9
How many atoms of nitrogen are in the chemical formula Ni(NO3)2?
A
2B
1C
6D
3Did you find these answers helpful?
Verified answers available
TRY EDGENUITY HACKS
- Auto Complete Exams
- Auto Complete Assignments
- Skip Videos Instantly
50,000+ students using this