An element has an atomic number of 10. the number of protons and electrons in a neutral atom of the element are
20 protons and 10 electrons
10 protons and 10 electrons
10 protons and 20 electrons
20 protons and 20 electron

When balancing a chemical equation:

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.

Draw two cyclic constitutional isomers of cis-1