If a certain compound has a formula H2X. What is the Valency of X?

What is the balanced chemical equation for c2h6+o2=co2+h2o

Is soap polar or no polar explain

Explain how EM waves are able to be seen

Ow does the weight of the water displaced compare to the buoyant force? Buoyant force is greater. Weight of the water is greater. They are the same.

The atoms in a single bond can rotate about the internu - clear axis without breaking the bond. The atoms in a double bond and a triple bond cannot rotate about the internuclear axis unless the bond is broken. Why?

Rank the following elements according to their ionization energy: tin krypton antimony arsenic

Water (3030 g) is heated until it just begins to boil. If the water absorbs 5.49*105 J of heat in the process, what was the initial temperature of the water?

Identify the number of core and valence electrons for each atom. Xe : core electrons Xe : valence electrons Ca : core electrons Ca : valence electrons Br : core electrons Br : valence electrons

What do the lines around the finger of the doorknob represent?

Identify what type of reaction is below. Also determine what coefficients that would balance the chemical equation.