Chemistry Midterm
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is the function of a Buret? | Used in titrations
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| What is the function of a condenser? | Used in distillation
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| What is a precipitation? | Solid
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| What is the basic unit of mass in the SI system? | Kilogram
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| What is the correct symbol for a kilometer in length? | km
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| What is the common name assigned to a volume equal to a cubic centimeter? | milliliter
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| What is the mass of one cubic centimeter of water at 4 degrees celsius? | 1 gram
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| A mixture that is uniform is a(n)? | homogenous solution
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| The law of conservation was applied to which lab? | Distillation Lab
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| What is an extensive property? | Do not measure
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| What is the physical property that describes the ration of the mass of an object to its volume? | Density (mass/volume)
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| What is a substance that contains two elements in a chemical combination called? | Compound
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| What type of property would the color of a substance be? | Extensive
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| Endothermic reactions are defined as those reactions that... | Absorb Energy
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| What is a variety of matter that is not uniform? | Heterogenous
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| What is energy of motion called? | Kinetic Energy
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| What form of energy is chemical energy? | Potential Energy
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| What is the lowest theoretical temperature that serves as the zero point for the temperature scale called? | Kelvin
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| What is a measurement of a unit of energy called in the SI system called? | Calorie
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| In what type of reaction do the products of the reaction always contain more potential energy than the reactants? | Endothermic
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| The energy (endo.) at which a substance in the liquid state freezes is the same as the energy (exo.) at which the same substance... | Melts
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| What is the name of the value that is equal to 1 cal/gram Celsius for water ONLY? | Specific Heat
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| What type of reaction is the following? Nickel + Hydrochloric Acid _______ | Replacement
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| What type of reaction is the following? Sodium Hydroxide + Sulfuric Acid ________ | Ionic
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| What type of reaction is the following? Hydrogen + Oxygen _______ | Composition
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| Silver nitrate and copper produce copper nitrate and what other element? | Silver
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| How much volume does one mole of any gas occupy? | 22.4L
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| What do Calcium and Nitric Acid produce? | Calcium Nitrate and Hydrogen
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| What is the gram formula weight of any element equal to? (Volume) | 22.4L
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| From which of these Elements (carbon, nitrogen, oxygen, fluorine,) do the electrons entering the p orbital first pair up? | Carbon
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| How many orbitals are in the second shell? | 2
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| How many valance electrons are in the outer shell of the Noble Gasses, accounting for their stability? | 8
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| If an element has 16 electrons, how many would fit in the second shell? | 8
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| What is a major factor responsible for the chemical properties of an element? | Isotopic Number
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| Which shell can fit no more than two electrons? | First
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| What are electrons in the outer shell called? | Valence Electrons
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| How many valence electrons are do the elements in the 7th column to the left of the Noble Gasses have? | 2
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| What substance has the highest level of potential energy? | Activated Complex
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| What kind of reaction has the highest energy of products? | Endothermic
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| What is the shape of an S orbital? | Sphere
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| What is the closest shape of a P orbital? | Dumbbell (peanut)
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| What determines the number of electrons? | Atomic Number
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| In which lab did we find the amount of energy needed to melt ice? | Calorimetry
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| What is the process of producing soap called? | Saponification
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| What is the process of producing light called? | Chemiluminescence
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| What was the lab called in which the unknown were identified by color, precipitations, and gases? | Qualitative Analysis
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| What do the total positive and negative charges in a formula add up to? | Zero
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| In the following equation, what is/are the reactant(s)? 2 H2 +O2 __________ 2 H2O | Hydrogen and Oxygen
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| The balancing of a chemical equation is accomplished by.... | Changing the coefficients next to the formulas
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| How would the following equation be described? H2 + Cl2 ------ 2 HCl + enegy | Exothermic
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| How would the following reaction be classified? Ca + MgSO4 ---- CaSo4 + Mg | Replacement
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| How would the following reaction be classified? CaO + H2O ------ Ca(OH)2 | Ionic
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| What is the gram-formula weight of an element equal to? (Mass) | the atomic mass of an element, and one mole of the element
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| The mass of one mole of any substance is... | Equal to 6 X 10^23 molecules
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| If HCl is hydrochloric acid, what is the name given to HF? | Hydrofluoric acid
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| What change is represented by the following equation? H2O(s) ------ H2O(l) | The melting of ice (solid --> liquid)
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| Chemical formulas indicate the elements present in the compound and... | Relative number of atoms of each element in the compound
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