What are the two classes of pure substances?
A) elements and atoms
B) compounds and molecules
C) elements and compounds
D) chemical and physical
E) homogeneous and heterogeneous
Correct Answer:
Verified
Q37: What is the basic unit of volume
Q38: What is the number 0.9050 written in
Q39: A patient needs 0.300 g of a
Q40: What is the density of a solid
Q41: Provide the answer to the following problem
Q43: How many pounds are represented by 764.6
Q44: What type of change is represented by
Q45: What does the prefix "centi-" mean?
A)10-1
B)10-2
C)10-3
D)102
E)103
Q46: In which state does matter have an
Q47: A student measures the mass of three
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents