How many moles are in 3.94 x 1023 molecules of c6h14?
a. 0.654 moles
b. 4.57 x 1021 moles
c. 3.395 x 1025 moles
d. 2.37 x 10 47 moles

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as

Why is retrograde motion an apparent motion