In the combustion reaction of acetylene gas (C2H2), how many moles of carbon dioxide are produced when 2.00 mol of oxygen are used?

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

The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as

What if it is did darwin used to support his theory of evolution