contestada

Which of the following are examples of an Element?
A. Substance 1 and 2
B. Substance 1 and 3
C. Substance 2 and 3
D. Substance 2 and 4

Which of the following are examples of an Element A Substance 1 and 2 B Substance 1 and 3 C Substance 2 and 3 D Substance 2 and 4 class=