0 for the elemental form
+2 in its compounds
Ca coute combien ? means How much is it?
It doesn't mean anything because it's not a word.
Sulfer Oxside and Nitrogen oxside SOx and NOx represent the many different gases obtained by the oxidation of sulfur and nitrogen. Since both sulfur and nitrogen can have a number of valence states, the molecule can continue to be oxidized from: SO, SO2, SO3, and SO4 nitrogen has even more possible oxidation products NO, NO2. N2O (laughing gas) NO3, NO4 , N2O5 et al. Therefore the use of the variable x is to preclude typing all the possibilities.
"CA" inside a gold ring typically stands for the manufacturer or designer's initials or logo. It is a hallmark or stamp used to identify the maker of the jewelry piece. The initials "CA" could represent the company name or the individual's name who created the ring. It is important to note that the specific meaning of "CA" can vary depending on the jeweler or brand.
The routing number in California is 121042882 courtesy of wellsfargo.com FAQ NOTE: The above is only partially correct. I checked my check (Southern California) and the number is 122000247. In the early 1990's Wells Fargo originally had a single routing number (121000248) for all transactions: paper, EFT, wire. When they purchased Great American Bank they acquired that banks routing number, 122000247, and applied it to all Southern California accounts, while using the original number for N Cal, and wire transactions to all accounts. As Wells Fargo merged with other banks and grew out of California, more and more routing numbers were acquired, with some discarded, and others kept. 121000248 is still used for paper transactions in N. CA, and all bank wires. 122000247 is still used for S. CA accounts. 121042882 appears to be the routing number of choice for most (but not all) EFT transactions.
The oxidation number of Calcium (Ca) is +2
The oxidation number of calcium (Ca) is +2 and the oxidation number of phosphorus (P) is -3. Therefore, in Ca₃P₂, the oxidation number of calcium is +2 and the oxidation number of phosphorus is -3.
In CaSO4, the oxidation number of Ca is +2, the oxidation number of S is +6, and the oxidation number of O is -2.
-1 for Carbon (in carbide) and +2 for Ca
Of course not. No change in neutrons. Number of electrons decrease
The oxidation number of Ca is 0 in its elemental form and is +2 in its compounds.
The only oxidation number is 2+.
The oxidation state of an individual carbon atom in CaCO3 is +4. This is because the oxidation state of Ca is +2, and the oxidation states of O are typically -2. The sum of the oxidation states for CaCO3 must equal 0, so the oxidation state of carbon in this compound must be +4.
The oxidation number for Sulfur (S) in CaSO3 is +4. This is because Calcium (Ca) has an oxidation number of +2 and Oxygen always has an oxidation number of -2. By setting up the equation Ca(+2) + S(x) + 3O(-2) = 0, we find that x = +4 for Sulfur.
The oxidation number of Ca in CaO2 is +1. This is because the oxidation number of O is -2, and since there are two O atoms in CaO2, the overall charge contributed by the oxygen atoms is -4 (2*-2). Therefore, the oxidation number of Ca must be +1 to balance the charges and make the compound neutral.
The oxidation number of Ca in CaC2O4 is +2 because Ca, a group 2 element, typically has a +2 oxidation state in compounds. The oxidation number of C in C2O4 is +3 because the overall charge of the oxalate ion is -2, and there are two C atoms, each with an oxidation state of +3 to balance the charge.
The oxidation number of calcium (Ca) in CaF2 is +2. This is because fluorine (F) typically has an oxidation number of -1, and the overall charge of CaF2 is neutral. Since there are two fluorine atoms each with a -1 charge, the calcium atom must have a +2 oxidation number to balance the charges.