Model C Sodium fluoride is slowly added to a beaker of water, resulting in no observable change. A simplified version of this reaction is provided below using Lewis structures: H-F + H H Element Compound Heterogenous mixture Homogenous mixture + F- H-O- How would you characterize the matter in the beaker after the reaction has taken place?

Write an electron configuration for Ne. Then write a Lewis symbol for Ne and show which electrons from the electron configuration are included in the Lewis symbol.

For each row in the table below, decide whether the pair of elements will form a molecular compound held together by covalent chemical bonds. If the elements will form a molecular compound, check the box and enter the chemical formula and name of the compound. (If the elements will form more than one molecular compound, use the compound with the fewest total number of atoms.) You may assume all chemical bonds are single bonds, not double or triple bonds. element pair will form a molecular molecular compound element #1 element ##2 chemical formula name compound oxygen hydrogen hydrogen chlorine calcium oxygen MAR 27 ... MacBook Air DII F10 888 FB F7 F4 F3 F2 & 23 2$ % @ 7 8 3 4 5 P R T Y W

Using the answers to the questions attached answer the question: Why are compounds composed of integer ratios of elements?

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For each row in the table below, decide whether the pair of elements will form a molecular compound held together by covalent chemical bonds. If the elements will form a molecular compound, check the box and enter the chemical formula and name of the compound. (If the elements will form more than one molecular compound, use the compound with the fewest total number of atoms.) You may assume all chemical bonds are single bonds, not double or triple bonds. element #1 element #2 sodium carbon hydrogen fluorine bromine bromine element pair will form a molecular compound molecular compound chemical formula 0 0 name 0 П 0 Ś

For the following ionic compounds, draw the Lewis symbols for the elements and, using arrows, show how electrons are transferred to make the ionic compounds.  Also show the final ions formed and the formula of the ionic compound.   a)  aluminum chloride                  b)  barium sulfide

A student finds a compound with two unknown atoms: X2Z3. He determines the difference in electronegativity is less than 1. What could be possible identities of X and Z

What kind of substances do not dissociate into ions? O lonic compounds with no polyatomic ions O lonic compounds with polyatomic ions O Acid and bases Molecular (covalent) compounds