The correct answer for Part A is:
C. A compound is composed of two or more different types of atoms, while an element is composed of only one type of atom.
1pt
This question has two parts. First, answer Part A. Then answer part B.
Both Part A and Part B refer to the following information:
A pure substance is a type of matter in which both the composition and chemical properties are constant, remaining the same throughout.
Both elements and compounds are classified as pure substances.
Part A
Though elements and compounds are similar in their classification as pure substances, there are differences in their compositions. Which statement correctly explains a key difference between the two?
A.
A compound is composed of only one type of atom, while an element is composed of two or more different types of atoms.
B.
A compound can be separated into different types of matter using physical means, while an element cannot.
C.
A compound is composed of two or more different types of atoms, while an element is composed of only one type of atom.
D.
A compound is two or more substances that combine due to a physical change, while an element forms due to a chemical change.
1 answer
1 answer