Which of these elements is a halogen? potassium (k) calcium (ca) vanadium (v) gallium (ga) bromine (br)

Which of the following shapes would represent a molecule with two bonded atoms and 3 lone pairs on only one of them , trigonal planar , bent , trigonal pyramidal , linear

What type of matter is made of only one kind of atom

All of the following are homogeneous mixtures except a) sugar dissolved in water. b) orange juice. c) coffee with cream. d) household vinegar. e) apple juice