fluorine atom has 9 electrons - 7 in its outer shell and 2 in its inner shell. How many electrons would be in the outer shell if it were to become a fluoride ion?

What is the formula for the ionic compound formed between the cation, X2+, and the anion, A3–? .

Write the formula for each of the following compounds and indicate which ones are best described as ionic: (a) sodium hypochlorite boron triiodide aluminum perchlorate calcium acetate potassium permanganate ammonium sulfite potassium dihydrogen phosphate disulfur dichloride chlorine trifluoride phosphorus trifluoride Capsaicin, the compound that gives the hot taste to chili peppers, has the formula C18H27NO3. (a) Calculate its molar mass. If you eat 55 mg of capsaicin, what amount (moles) have you consumed? Calculate the mass percent of each element in the compound. What mass of carbon (in milligrams) is there in 55 mg of capsaicin? Write balanced chemical equations for the following reactions: production of ammonia, NH3(g), by combining N2(g) and H2(g) production of methanol, CH3OH(ℓ) by combining H2(g) and CO(g) production of sulfuric acid by combining sulfur, oxygen, and water. Your doctor has diagnosed you as being anemic—that is, as having too little iron in your blood.…

Write the chemical formula for this molecule: H II I Drag the slider to get a different view of the molecule. O carbon nitrogen oxygen fluorine key hydrogen sulfur chlorine bromine

How many atoms of oxygen are in this molecule? H,O O 1 2 O 3 O 4

Give the formulas for the following: magnesium hydroxide lead (II) chromate boron trifluoride diantimony pentasulfide