Is K2O( Potassium oxide) in the group of an atom? Molecule? Element? Ionic Compount?
Is P2O5(Phosphorus Pentoxide) in the group of an atom? Molecule? Element? Ionic Compount?
Is Water in the element group? is it an ionic compound?
2006-10-06 06:39:37 · 6 answers · asked by ohmv87 4 in Science & Mathematics ➔ Chemistry
An atom or element is a substance which is irreducible by chemical means (this leaves out nuclear changes). You can break down K2O to 2K's and an O, so this would not qualify as an element. It would be a compound, which is a substance that cannot be broken down further by physical means but can still be broken down chemically. Since K is on the left side of the periodic table and O to the right, this would be an ionic compound. K has a +1 charge and O a -2, so it would take 2 K's to neutralize the charge on one O2- ion. Compounds and molecules (covalently bound elements) will have a charge of zero.
So all the substances you have asked about are compounds. P2O5 is a molecule (covalent- bonding of elements on same side of periodic table more likely to share electrons).
Water is H2O or more properly H+(OH-) , an ionic compound that can be broken down as such: 2H2O--> 2H2 + O2
Just test whatever substance to see if it can be broken down any further chemically to distinguish it between an element (or atom) and a molecule or ionic compound.
2006-10-06 06:49:25 · answer #1 · answered by Black Dog 6 · 1⤊ 0⤋
Ionic bonds= metal to non-metal
Covalent bonds= non-metal to non-metal
These are not true of every compound, but it is the general guideline. So:
K2O is an ionic compound
P2O5 is a molecule
water is a molecule
They are all compounds, just different types.
An element cannot be broken down physically or even chemically. (Unless we are talking about radioactivity, but that is a different ball game.)
2006-10-06 06:45:18 · answer #2 · answered by Anonymous · 0⤊ 0⤋
K2O ionic compound
P2O5 molecule
water molecule
2006-10-06 06:48:24 · answer #3 · answered by Jabberwock 5 · 0⤊ 0⤋
Elements are the things you find on the periodic chart. If it is not on the periodic chart, it is not an element. Water is not an element for definitions of modern chemistry.
2006-10-06 06:47:30 · answer #4 · answered by Your Best Fiend 6 · 0⤊ 0⤋
God is specially religions. faith is the automobile by potential of which we come to understand God. Your Christian chum is right, in the context of the Holy Scriptures of the Bible. Taking that a step extra effective, the Trinitarian God, God because of the fact the Son, i.e. Jesus Christ, develop into in certainty baptized, contained in the River Jordan, by potential of John the Baptist. in case you ask a Jew, she or he could assist you comprehend that God isn't a Christian. in addition, Allah is God of the Islamic faith. All 3 religions hint their roots back to Abraham. as far as Hindu is worried, i've got faith the deity is Vishna. If we seem in any respect religions, there is extra in uncomplicated between them than no longer. The underlying commonality, from my attitude, is the Spirit of God.
2016-10-02 00:25:15 · answer #5 · answered by ? 4 · 0⤊ 0⤋
they are all ionic compounds to my best notion
2006-10-06 06:42:12 · answer #6 · answered by tommiesonn 2 · 0⤊ 1⤋