can someone break down and explain this chemical equation for me?
CaO(s) + H2O(l) --> Ca(OH)2 (aq)
the 2's are subscripts
2006-12-10 06:57:57 · 8 answers · asked by mortifiedpengn 3 in Science & Mathematics ➔ Chemistry
For every molecule of CaO that you add to a molecule of water, you will get a molecule of Ca(OH)2 in solution. Basically, it says that CaO is soluble in water.
2006-12-10 07:02:48 · answer #1 · answered by Peeps 3 · 0⤊ 1⤋
Calcium oxide (CaO) is a solid - (s)
When it reacts with liquid water,H2O, (l)
the two compounds combine (called a synthesis reaction) to make one compound, calcium hydroxide, Ca(OH)2 which is soluble in water and thus produces an "aqueous" solution (aq).
The ratios of reactants to products is 1:1:1
In the CaO, there is one calcium atom and one oxygen atom
In the H2O there are two hydrogen atoms and one oxygen atom.
These are your reactants
In the Ca(OH)2 the "(OH)2" means there are two of each element inside the parenthesis. This means on the product side
there is one calcium atom, two oxygen atoms, two hydrogen atoms.
Compare the reactant numbers to the product numbers and you will see the equation is balanced
1 Ca = 1 Ca
2 H = 2 H
1 O + 1 O = 2 O
2006-12-10 07:08:17 · answer #2 · answered by The Old Professor 5 · 0⤊ 0⤋
calcium Oxide (CaO) When exposed to water (H2O) makes calcium Hydroxide in solution form...... Ready for Whitewash
2 is subscript here.
2006-12-10 07:11:04 · answer #3 · answered by mydaffodils4u 1 · 0⤊ 0⤋
This means that calcium oxide (Ca O, a compound of oxygen and calcium) in solid form, will react with water (a compound of hydrogen and oxygen, having two atoms of hydrogen for one of oxygen) in liquid fom, to produces calcium hydroxide, in aquous from -- that means in the form of a salt molten in water.
2006-12-10 07:02:29 · answer #4 · answered by Vincent G 7 · 0⤊ 1⤋
calcium oxide plus water makes calcium hydroxide with 2 hydrogens an acid. Thats all i know
2006-12-10 07:00:26 · answer #5 · answered by Anonymous · 0⤊ 2⤋
1 mol of calcium oxide (solid) plus one mole of water (liquid) producing one mol of calcium hydroxide (taken twice) in a water solution
2006-12-10 07:00:33 · answer #6 · answered by ccmfreak101 2 · 0⤊ 1⤋
calcium oxide combines with water to form calcium hydroxide...
2006-12-10 07:15:48 · answer #7 · answered by ashwin_hariharan 3 · 0⤊ 0⤋
nicely given which you have 2 chlorines on the single part you would be able to desire to have 2 on the different part, so which you place the two infront of the NaCl. now you have 2 sodiums on that part so which you opt for 2 on the different part, so which you place the two infront of the na, now there are equivalent numbers of Na and Cl on the two aspects
2016-10-05 03:22:16 · answer #8 · answered by ? 4 · 0⤊ 0⤋