PLZ HELP 20 POINTS 2CaCO,

How many Carbon atoms are represented in the formula shown?

A) 1
B) 2
C) 3
D) 4

Rutherford's experiment indicated that matter was not as uniform as it appears what part of his experimental results implied this idea

How many lone pairs of electrons are on the central atom of no3- and what is the molecular shape? one, trigonal planar zero, trigonal pyramidal zero, trigonal planar one, tetrahedral one, trigonal pyramidal

The biomedical technique in which a part of the brain is destroyed with electric current is known as a. electroconvulsive therapy b. prefrontal lobotomy c. bilateral cingulotomy d. tardive dyskinesia