a) Complete the sentence I)The atomic number of an atomic number of II)The mass number of an atom is the number of

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver