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chemistry
| Question | Answer |
|---|---|
| what compound contains both ionic and covalent bonds | you check which one has 2 non-metals and a metal if there is one with only two elemets js cross it out mate |
| if theres a question that is like really long and talks about a ratio with roman numerals what do you do | takt the ration and use the charges to find what roman numer al it has |
| how do you know an element is stable | go from left to right on the periodic table renember the noble gases are the most stable |
| covalent bonds properties | low melting point ans low boiling point gases or vaiporize quickky realativity soft intramolecular forces are strong while intermolecular forces are weak |
| ionic compound properties | high melting point and boiling point hard dont conduct electricity electrolytes |
| what elements have similar chemical properties | elements in the same row |
| when it uses x to represent an element and asks what group it is what do you do | you check if its ionic or covalent and if its covalent uk or ionic uk so check the groups also check the number of valence electrons it has to find the group |
| what is a metalic bond | metal metal so it if asks whats between two metalic elements its a metalic bond |
| what is non polar and polar covalent bonds | non polar is two of the same non metals polar is 2 differnent non metals |
| what are the properties of metalic bonds | crystal structure , conducts electricity ,conducts heat mealleable and ductile shiny and high melting point |
| whats another name for covalent bonds | molecular compound |
| whenever you do a question with a formula that can be simplified simplify it | ok |
| conductivity in a metal results from metal atoms having | high mobile electrons in the valence shell |
| when it asks like whats the formula for 2 groups what do you use the charge or valence electrons | valence electrons |
| when a bond is formed energy is | realead exothermic |
| in ionic compounds what happens to the electrons | they are transfered |
| when it says two elemets combine to form something what do you do | check the charge of each one and see what it equals |
| when a bond is broken its a _____ and eneergy is | endothermic process and energy is absorbed |
| what kind of energy is in a chemical bond | potential energy |
| What is the driving force behind the formation of a chemical bond? | To achieve a stable octet (8 valence electrons), which is the same electron configuration as a stable noble gas. |
| BARF" | Break Absorb, Release Form. |
| if there is a single bond and a triple bond which one is stronger | the triple |
| What is the relationship between Electronegativity Difference and bond character? | The higher the Electronegativity Difference , the greater the Ionic Character. The lower the Electronegativity Difference , the greater the Covalent Character. |
| when. it asks for the IUPAC name of something with a ratio what u do | Its the stuff like di tri tetea alll those but only when its a covalent compound when its ionic u use roman numerals |
Created by:
Fernando.Quezada