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| The_______ _______ in an atom of an element determines many properties of that element, including the ways in which the atom can bond with atoms to form compounds. |
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| A ______ ______ is a force of attraction in atoms based off the rearrangement of valance electrons. |
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| They want to be stable, or "happy" |
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| All atoms want to have the same number of valance electrons as the nobel gases because ____ _____ _____ _____ ______ |
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| When an atom loses an electron, it loses a negative charge and becomes a _______ ion. |
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| When an atom gains an electron, it gains a negative charge and becomes a ________ ion. |
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| ___________ _____ are made of more than one atom. |
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| The charge leftover after the atom becomes "happy" or stable, is known as... |
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| A ______ ____ is formed when two atoms share electrons. Usually formed between NON-METALS atoms |
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| Atoms share electrons so that each can have a stable set of _ valance electrons. (except hydrogen) |
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| The _____ ____ _____ _____ is equal to the NUMBER OF ELECTRONS NEEDED to make 8 valance electrons (except hydrogen it only needs 2 electrons to be :) |
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| Number of electrons needed |
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Definition
| The number of covalent bonds that a non-metal atoms can form is equal to the ______ ____ _____ ______ to make a total of 8 valance electrons (except hydrogen it only needs 2 electrons to be :) |
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| A _____ ___ is a covalent bond where electrons are shared unequally(pulled unequally) |
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| A __________ ____ is a covalent bond is where electrons pull equally |
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| A molecule that may contain polar bonds and still be non-polar overall is a _____ ____ molecule. |
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| OTher molecules may have polar covalent bonds and are polar overall which is ____ molecules. |
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| A _____ ____ is a bond in one which there is an attraction between a positive metal ion and the electrons surrounding. |
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| the ______ of a compound identifies the elements in the compound and the ratios in which their atoms are present. |
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| A ______ ____ tells how many of that specific atom is in the forumla |
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| Sometimes a ________ (number at the beginning of the formula) is used to also describe atoms or molecules that are present. |
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| Principal of Conservation of Mass |
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Definition
| The __________ __ ___________ __ _______ states that in a chemical equation in the total mass of the products must be equal to the total mass (at the end). |
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Term
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Definition
| Metal(Na) + Non-metal (Cl)ide = |
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| Iron (Roman numeral 3) Bromide |
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| Metal (Fe) + Roman numeral (3) + Non-metal (Brom)ide |
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| Prefix(Di) + Nonmetal (N)ite + Prefix (Penta) +Non-metal (O)ide |
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| Change in energy, and a new substance |
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Definition
| Chemical reactions involve two main observational changes: |
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| ________ _____ is the minimal amount of energy needed to start a chemical reaction. |
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| absorb energy; they feel cool as heat is added. |
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| release energy; they feel hot as heat is released. |
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| two or more substances combined to make a more complete substance |
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| the process of breaking down compounds into smaller compounds |
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| the Three necessities of a fire: |
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| _______ is the process in which one element replaces another with a compound or that two elements in different compounds traded places. |
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| Hydrogen ion (H+) and a negative ion |
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Definition
| Acids produce one or more ________ ___ and a _________ ___ when it's a solution of water. |
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Definition
| An ______ is a compound that tastes sour, corrodes metal, reacts with carbonates, and turns blue Litmus paper red. |
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| Hydroxide (OH-) and one positive ion |
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Definition
| Bases produce one or more ___________ ___ and one ___________ ___ when it's dissolved in a solution of water. |
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Definition
| A ____ is a compound that tastes bitter, feels slippery, does not react with carbonates, and turns red Litmus paper blue. |
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| refers to how well an acid or base produces ion is water. The stronger it is the more ions it produces. |
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| concentration level, and it's pH level |
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Definition
| the final reaction between acid or base depends on _________________________ and _____________. |
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| The concentration of H+ ions are measured on a _____________ with a range of _-__ |
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| A reaction between an acid and a base is called: |
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| In a nuetralization reaction, an acid reacts with a base to produce _____ and ______ |
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