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| What is Avagadro's number? |
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| A chemical formula that shows the chemical composition in the lowest whole number is known as the ________. |
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Stoichiometry is used in many places in automobiles in all the following EXCEPT:
a. Airbags
b. Engines
c. Windows
d. Exhaust |
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Term
| _______ is a branch of science concerned with energy changes accompanying phyical and chemical changes. |
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Term
| The SI Unit for energy is ______. |
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Term
| The total energy in a sample (cannot be measured) is known as ______. |
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Term
| What is the formula used to calculate heat? |
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Definition
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| ________ states that H does not depend on the number of steps in a reaction (only the initial and final conditions matter). |
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Term
| If G is negative, a reaction is ________. |
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| A ________, is a reaction in which a single compound breaks down to form 2 or more simpler substances. |
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Term
| A ________ is an arrangement of electrons in an atom. |
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Definition
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Term
| What principle states that two particles of a certain atom cannot be in the exact same energy state? |
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Definition
| Pauli Exclusion Principle |
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Term
| _______ is a measure of the ability of an atom in a chemical compound to attract electrons. |
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| A ________ is a process by which one or more substances change to produce one or more different substances. |
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| ________ is anything that has mass or volume. |
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Term
| Something that has a uniform structure or compound throughout is known as a _______ mixture. |
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| _________ is composed of dissimilar components. |
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Definition
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| _______ states that mass cannot be created or destroyed in any ordinary chemical and phyical changes. |
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Definition
| Law of conservation of mass |
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Term
| The resistence of flow is known as ______. When a liquid has high viscosity, it flows very ______ and vice verca. |
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Term
Which of the following compounds have much stronger attractice forces; therefore, more energy is required to separate particles?
a. ionic
b. nonpolar
c. molecular
d. chemistry |
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Term
| ______ is the state where a chemical process and its reverse process happen at the same rate. |
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The reaction CO2 (g) C(s) + O2 (g) is
a. exothermic
b. endothermic
c. isothermic
d. spontaneous |
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Definition
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Term
Which of the following is most likely to have a high boiling point?
a. CO2
b. CH4
c. NaCl
d. H2O |
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Term
| How many Pascals are in a kiloPascal? |
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Definition
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Term
| How many kiloPascals equal an atmosphere? |
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Definition
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A chemical reaction that is at equilibrium
a. is a reversible reaction
b. doesnt have a forward reaction rate that equals the reaction rate
c. has equal concentrations of reactants and products
d. none of the above |
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Definition
| a. is a reversible reaction |
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Term
| Reaction rates decrease with ______. |
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Definition
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Term
The definition of rate does not include which of the following?
a. temperature
b. pressure
c. concentration
d. surface area |
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Definition
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Term
Sugar in water is an example of which solute-solvent combination?
a. gas-gas
b. liquid-liquid
c. solid-liquid
d. liquid-solid |
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Term
Carbon dioxide in air is an example of the solute-solvent combination
a. gas-gas
b. gas-liquid
c. gas- solid
d. solid-liquid |
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Term
| ________ is a base that forms when an acid loses a proton. |
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Definition
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Term
| __________ is an acid that forms when a base gains a proton. |
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Definition
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Term
| The reaction of Hydronium ions and Hydroxide ions to form water molecules and salt is known as _______. |
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Definition
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| The smallest unit of an element that maintains the properties of that element is known as a(n) _______. |
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