How many protons and neutrons are there in an atom of 3.K? O
A. 11 protons and 21 neutrons
B. 19 protons and 11 neutrons
O C. 49 protons and 19 neutrons
O
D. 11 protons and 19 neutrons

How does litmus paper indicate an acid?

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

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