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Unit 3
Chemistry
| Question | Answer |
|---|---|
| How many different types of chemical bonds are there? | Five |
| What type of bond occurs when one or more electrons from one atom are transferred to another atom? | ionic |
| This is a very strong force between atoms that holds them together. | Chemical bond |
| Electrons in one atom are attracted to this in another atom and this attractive electrical force forms a bond. | Protons |
| The bond between NA and Cl that holds the NaCl bond together is called what type of bond? | Ionic |
| In the case of covalent bonds, the electrons are not given away they are?? | Shared |
| When one chlorine atom is covalently bonded to another chlorine atom, this forms a ________________ of chlorine. | molecule |
| A __________tells us what chemicals make up a compound. | Chemical formula |
| Chemical _____________ are uses in formulas to represent the elements. | Symbols |
| The formula H2O means that there are ______________atoms of hydrogen. | Two |
| The chemist signifies two moles of H2O by writing a 2 in ________ of the formula | front |
| Salt has the chemical name of _________ | Sodium chloride |
| Remember, ________________ created the elements and their chemical properties | God |
| _________ and other scientists have developed a system of naming things in order to work with them | Chemists |
| Sodium chloride is an example of a type of compound, called a ___________ compound | Binary |
| The actual event when the chemicals come together and bond is called a ______ | Chemical reaction |
| A chemical ______is one of the many things that can result from chemical reactions | bond |
| The ___________ are the substances we begin with in a reaction | Reactants |
| The _____________ are what remains after the reaction takes place | Product |
| The best definition for an acid is that it can donate or give away a _________ in a reaction | Proton |
| Acids corrode, or eat away, ________ | Metals |
| Acids react with another type of compound called _________ | Bases |
| The definition of _________________ is an atom with a charge (+ or -) | Ion |
| Bases are ____________ to the touch | slippery |
| Bases _________hydrogen ions in a reaction | Gain |
| Tin fluoride (snF2) is a salt made in the laboratory by chemists and is used in toothpaste to _________ | prevent cavities |
| The oceans in the world are filled with _____________ | Salt |
| A salt that is found in chalk and limestone | calcium carbonate |
Created by:
cwinningham
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