If there were a chain of 20K and Br atoms attached to each other, somehow, then the formula would be written as K20Br20. Since only one K+ ion attaches to one Br- ion, the formula is written as KBr, regardless of how many are there.
One formula unit of MgBr2 has three ions; one Mg2+ ion and two Br- ions. One mole of MgBr2 formula units has one mole of Mg2+ ions and two moles of Br- ions, for a total of three moles of ions.
The ions are Sn2+ and Br-, so the formula is SnBr2.
K20Br20 is just KBr. The individual molecules for that form from these elements are not a chain of 20 potassium atoms and 20 bromine atoms linked together, they are a single potassium atom and a single bromine atom bonded.
The ionic formula for Ca 2 Br-1 is CaBr2. This is derived by balancing the charges of calcium (Ca2+) and bromine (Br-). Two bromine ions are needed to balance the double positive charge of the calcium ion.
The chemical formula for strontium bromide is SrBr2. It consists of one strontium (Sr) ion and two bromide (Br) ions.
One formula unit of MgBr2 has three ions; one Mg2+ ion and two Br- ions. One mole of MgBr2 formula units has one mole of Mg2+ ions and two moles of Br- ions, for a total of three moles of ions.
The ions are Sn2+ and Br-, so the formula is SnBr2.
Ba+2 Br-1 -----> these are the ions and their chargesBa+2 Br+1 Br+1 ----> the charges must add to zero, so one positive Br ion is added to cancel out the +2 Ba ionBaBr2 ------> simplifyName: Barium bromide
K20Br20 is just KBr. The individual molecules for that form from these elements are not a chain of 20 potassium atoms and 20 bromine atoms linked together, they are a single potassium atom and a single bromine atom bonded.
The formula for barium bromide is BaBr2. This compound consists of one barium ion (Ba^2+) and two bromide ions (Br^-).
The ionic formula for Ca 2 Br-1 is CaBr2. This is derived by balancing the charges of calcium (Ca2+) and bromine (Br-). Two bromine ions are needed to balance the double positive charge of the calcium ion.
The chemical formula for strontium bromide is SrBr2. It consists of one strontium (Sr) ion and two bromide (Br) ions.
Cu+2 Br-1
Ca2+, AL3+,BR-
The chemical formula for chromic bromide is CrBr3. It consists of one chromium ion (Cr) and three bromide ions (Br).
Magnesium bromide has the chemical formula MgBr2. It is composed of one magnesium ion (Mg2+) and two bromide ions (Br-).
The compound formed from the ions of calcium and bromine is calcium bromide, which has the chemical formula CaBr2. In this compound, calcium ion Ca2+ combines with two bromide ions Br- to achieve a neutral charge.