If you take an oxygen atom away, what would happen?

hmmm, looks like two questions here.

First water can be separated into hydrogen and oxygen using electrolysis. It can easily be done with 'equipment' found around the home. The component parts are not water (which is not an element, btw) but can be recombined to form water again. (Note that the energy released at recombination is *always less* than that used to separate it.) Should not be a difficult concept.

Second, the Godhead or Trinity, includes Father, Son and Holy Spirit. When taken separately they are individually Father, Son and Holy Spirit, and when taken together are the Godhead or Trinity. Again, should not be a difficult concept.

Jesus both instructed and prayed that his disciples would be "one" even as He and the Father are one: (John 17:11, 17:22); "one" with or in Jesus and/or the Father (John 17:21, Romans 12:5 1Corinthians 6:17); and even men and women should one or one flesh(Genesis 2:24 Matthew 19:5 Mark 10:8 1Corinthians 6:16 Ephesians 5:31 Galatians 3:28) There are many other variations. If you can understand what He wanted of them (and us) you should be able to understand the 'oneness' of the Godhead or Trinity. Once more, should not be a difficult concept.

Are we individuals? Yes. Do individuals become different and even more complete as they become of one heart and one soul(Acts 4:32)? Yes.

Are men and women physically separate? Yes. Do they become different and even more complete as they unite in Christ(Galatians 3:28)? Yes

Are all three individuals in the Trinity necessary for the Trinity to be whole? Must they be 'one' to accomplish what they are supposed to accomplish? Yes, or God would not have set it up that way.

Use intelligence, wisdom, and open your mind to the direction of the Holy Spirit given in response to humble and faithful prayer, and everything becomes a lot more understandable.

Water is a special molecule.

First, the bonds are so tight that the hydrogen electron clouds are nearly entirely within the oxygen electron cloud. The molecule is often adequately modeled as a hard sphere.

Next, it is the best example of a molecule for hydrogen bonding of the molecules to each other. Even though each molecule is electronically neutral, it has a strong capacity to share bonds with a hydrogen of up to two other molecules.

Because of these strong bonds, it is actually difficult to separate the component atoms and when they are separated, they easily and quickly form bonds with neighboring molecules.

Because of this unique bonding, it has been theorized that the complex large molecules that formed the basis for life originated in high-density glasslike ice (random molecular orientations rather than uniform crystalline ones) through the deposition bonding of other (mainly) midvalence atoms. We see a similar bonding occur in the creation of carbohydrates here on earth.

Well, firstly, H2O means that it's 2 parts Hydrogen, and one part Oxygen.

So if you took an Oxygen atom away, you'd be left with a molecule of pure Hydrogen (ie. H2).

If, on the other hand, you took a Hydrogen atom away, you'd have an OH- ion. I'm not sure if that can exist by itself in the atmosphere for long, but it's fairly common in alkaline solutions.

you got it wrong. H2O is water. 2 parts Hydrogen, 1 part Oxygen.

If the Oxygen molecule is removed, You get Hydrogen gas (H2).

If a Hydrogen atom is removed, You get HO, but this compound is unstable and will join with another HO to form H2O2 (Hydrogen Peroxide liquid), pale blue colour.

first of all,water is a chemically bonded molecule which means that taking off oxygen requires considerable amount of heat leaving only hydrogen molecule

If this could be done easily we have an endless supply of hydrogen for fuel.

Definitely wouldn't be water.

OH can't join chemically as a compound but can make a hydroxyl ion. You find them in alkalis, but you wouldn't get, say, a beaker of hydroxyl ions

Ok relax now and take another hit. Puff puff, pass