I will brainlist correct answers you An individual proton has mass 1.007825 amu, and an individual neutron has mass 1.008665 amu, and the observed atomic mass gadolinium-157 is 156.92396 scammers will be reported

A. -1.38269 amu

B. 1.38269 amu

C. -1.35833 amu

D. 1.35833 amu

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.

Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)

In one or two grammatically correct sentences, write a definition for the term molecule geometry