in calcium chloride each calcium atom needs to lose two electrons but each chlorine atom needs to gain only one electron. This means that two chlorine atoms react with every one calcium atom to form calcium chloride. So the formula for calcium chloride is CaCl2.
ca = proton number is 20 so the structure would be 2, 8 ,8 ,2
cl = proton number is 17 so the structure would be 2 , 8,7
To make it stable calcium has to lose 2 electrons and chlorine has to gain an electron. However if you add 2 to 7 in the chlorine it will make 9 so it will still be unstable therefore you need two chlorine atoms to share out the 2 atoms in calcium.
2NH4Cl + CaO --> 2NH3 + CaCl2 + H2O
Thewhite powdered solid that produces a hissing soundwhen added to water is calcium oxide (lime). When lime reacts with moist hydrogen chloride gas, calciumchloride is formed. CaO + 2HCl → CaCl2 + H2O (Calcium Oxide + Hydrogen chloride → Calcium chloride + water)
CaO is the chemical formula of calcium oxide.
The best way to answer this question is with an example. Using Calcium oxide reacting with hydrochloric acid, the reaction formula is: CaO + 2HCl ----->CaCl2 + H2O The molecular weight for Calcium Oxide is 56, for Hydrochloric acid is 26.5 and for calcium chloride 110. If you start with only 56g of Calcium oxide but say 10000g of hydrochloric acid, the maximum yield of the product calcium chloride can only ever be 110g. It does not matter how much hydrochloric acid is added. The limiting reactant in this example is the calcium oxide.
The chemical formula of calcium oxide is CaO.
2NH4Cl + CaO --> 2NH3 + CaCl2 + H2O
This equation is CaO + 2 HCl -> CaCl2 + H2O.
a transfer of electrons from calcium to chlorine
CaO + 2HCl -><- CaCl2 + H20 lrn2chemestry plz
acid + metal oxide -> metal salt + water hydrochloric acid + calcium oxide -> calcium chloride + water 2HCl (aq) + CaO (s) -> CaCl2 (s) + H2O (l)
If you want to know chemical formulas:Sodium chloride is NaCl.Calcium oxide is CaO.
CaCl2 + H2O = CaO + 2HCl
CaO(aq) + 2HCl(aq) -> CaCl2(aq) + H2O(l) An ionic bonded and dissociated compound, calcium oxide, reaction with a fully dissociated strong acid, hydrochloric acid that produces a dissociated salt, calcium chloride and water.
Calcium Oxide (CaO) is a compound.
Calcium Oxide.
Thewhite powdered solid that produces a hissing soundwhen added to water is calcium oxide (lime). When lime reacts with moist hydrogen chloride gas, calciumchloride is formed. CaO + 2HCl → CaCl2 + H2O (Calcium Oxide + Hydrogen chloride → Calcium chloride + water)
Ca(ClO3)2 --> CaCl2 + 3O2 is the equation for calcium chlorate to calcium chloride + oxygen gas.