Which pair of compounds represents one Arrhenius acid and one Arrhenius base?
A. CH3OH and NaOH
B. CH3OH and HCl
C. HNO3 and NaOH
D. HNO3 and HCl

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

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

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope