Summarize the following:
The simplest type of ionic compound is made from exactly 2 elements, 1 metal and 1 non-metal. Their name is always written as 2 element names, plus the -ide suffix attached to the second name.  Examples of simple binary ionic compounds include potassium oxide and sodium phosphide. If the "-ide" suffix doesn't follow a single element name, see instructions for polyatomic ions. For example, "oxide" is a simple oxygen ion, but "hydroxide" and "peroxide" are polyatomic. The first word of the name refers to the metal ion (the positively charged cation). You can find this element on the left side of the periodic table. The second word, ending in -ide, refers to a non-metal ion (the negatively charged anion). Find this on the right side of the periodic table . For example, potassium oxide is a combination of potassium (chemical symbol K, atomic number 19) and oxygen (O, atomic number 8). Notice that the -ide ending is not part of the element name. You're just looking for an element with the same beginning (in this case ox-). In these simple compounds, it is easy to predict the charge of each ion. Each element in a particular column of the periodic table always forms an ion with the same charge:  The Group 1 elements Li, Na, K, Rb, and Cs gain a charge of 1+ (written simply as +). The Group 2 elements Mg, Ca, Sr, and Ba gain a charge of 2+. The Group 13 element Al gains a charge of 3+. The Group 15 elements N and P gain a charge of 3-. The Group 16 elements O and S gain a charge of 2-. The Group 17 elements F, Cl, Br, and I gain a charge of 1- (written as -). It’s crucial to balance the charges in order to write ionic compounds correctly. Electrical forces hold together ionic compounds, pulling the positive and negative ions together. Taken as a whole, the ionic compound is electrically neutral, meaning it has a total charge of zero. (If it had a different charge, it would pull in another atom.) Find the number of atoms of each element that combine to "cancel out" each other's charge and make a neutral compound.  For example, potassium oxide is made up of potassium ions K+{\displaystyle K^{+}} and oxygen ions O2−{\displaystyle O^{2-}}. This means that 2 potassium ions (total charge 2+) balance out the charge of 1 oxygen ion (charge 2-). Here's a shortcut: the first ion's charge (ignoring + or -) tells you the number of atoms of the second ion, and vice versa. For example, aluminum fluoride is made of Al3+{\displaystyle Al^{3+}} and F−{\displaystyle F^{-}} ions. The charge of Al3+{\displaystyle Al^{3+}} is 3, so there are 3 F−{\displaystyle F^{-}} atoms. The charge of F−{\displaystyle F^{-}} is 1, so there is 1 Al3+{\displaystyle Al^{3+}} atom. Write the 2 chemical symbols in the same order they appear in the compound's name (metal then nonmetal). After each chemical symbol, write the number of atoms as subscript (like this{\displaystyle _{like\ this}}). If there is exactly 1 atom of an element, you do not need a number. There is no need to write the charges.  For example, potassium oxide has 2 potassium atoms and 1 oxygen atom. The chemical formula is K2O{\displaystyle K_{2}O}. Aluminum fluoride has 1 aluminum atom and 3 fluorine atoms. The chemical formula is AlF3{\displaystyle AlF_{3}}. Ionic compound formulas are always written in the empirical formula, meaning they’re written with the minimum number of atoms required. If you could balance out the charges with fewer atoms, rewrite the formula. This is the same process as reducing fractions. For example, barium sulfide is made of Ba2+{\displaystyle Ba^{2+}} and S2−{\displaystyle S^{2-}} ions. Using the shortcut above, the barium ion's charge (2) is equal to the number of sulfur ions, and the sulfur ion's charge (2) is equal to the number of barium ions. This gives us the formula Ba2S2{\displaystyle Ba_{2}S_{2}}. However, you don't need this many atoms to balance the charges. Write the 2 numbers as a fraction and simplify: 2 barium atoms2 sulfur atoms=11{\displaystyle {\frac {2\ barium\ atoms}{2\ sulfur\ atoms}}={\frac {1}{1}}}, so the correct formula is BaS{\displaystyle BaS}.

summary: Identify a binary compound. Look up the 2 elements on a periodic table. Find the charge of each ion. Balance the charges. Write your answer as a chemical formula. Simplify if possible.


Summarize the following:
. Both the buyer and the seller should hire their own appraiser to determine the value of the house. The seller receives an appraisal in order to select a price for the home, and the buyer gets an appraisal to confirm that the selling price is fair. You can find an appraiser in the following ways:  look in the Yellow Pages ask for a referral from a mortgage company, bank, or realtor contact your state’s licensing agency Both parties should work closely with a real estate attorney. A real estate attorney can draft all of the necessary paperwork. The attorney can also protect your interests. For example, the buyer can include a protection clause just in case the property has to be sold in response to a life changing event, job relocation or loss, divorce or death. You can get a referral to a real estate attorney by contacting your local or state bar association. Bar associations are organizations made up of attorneys, and they often provide referrals to their members or can help you find an attorney. A Residential Mortgage Loan Originator can give you advice on how to manage owner financing in a way that is transparent and compliant with regulations. When you owner finance a home, you are essentially providing the buyer a loan until they complete their payments on the home. Since you want your agreement to be clear and binding, it's good to work with a mortgage professional.  Your RMLO can help ensure that your owner financing documents are compliant with the Safe Act and Dodd Frank Act. Make sure your RMLO is properly licensed by your state. Check with your state’s Department of Business Oversight or equivalent state office to check.
summary: Hire an appraiser Hire a real estate attorney. Get advice from a Residential Mortgage Loan Originator (RMLO).