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Final Exam Review
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The mass of one mole of NaCl is
10 28 g 39 g 58 g 76 g 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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When graphing data, which axis is the dependent variable?
10 It does not matter X- axis Y-axis 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Because it dissolves so many substances, ___ is called the universal solvent.
10 Alcohol Acetone Mineral spirits Water 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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In any chemical reaction, the mass of the products is ___ the mass of the reactants.
10 Greater than Less than Equal to None of the above 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Balance the following equation: ___K + ___O2 __ K2O
10 4,1,2 4,2,1 1,1,1 2,4,1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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How many moles of pens to you have if you have 3.01 x 1023 pens?
0.5 1 2 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Which gas composes the greater percentage of the atmosphere?
10 Helium Hydrogen Nitrogen Oxygen 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The air pressure at sea level is 14.7 lb/in2 or ___.
10 1 atm 50 torr 1000 mmHg 2000 mmHg 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The instrument used to measure temperature is the ___.
10 Balance Thermometer Barometer Graduated cylinder 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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In the metric system, temperature is measured on the ___ scale.
10 Celsius Fahrenheit Cesium Francium 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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A good technique when heating a liquid in a test tube is to point the open end away from ___.
10 Yourself Classmates The teacher All of the above 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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A graduated cylinder used in our chemistry lab is calibrated in ___.
10 Milliliters Liters Grams Degrees Celsius 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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What piece of lab equipment is the most accurate for measuring volume?
10 Centimeter Beaker Gram Graduated cylinder 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Acid rain can ___. Destroy forests Improve nutrient uptake in plants
10 Destroy forests Improve nutrient uptake in plants Increase the pH of lakes Preserve aquatic life 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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A ___ can dissolve another substance.
10 Solute Solvent Saturation Unsaturated 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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A ___ solution holds less than the maximum amount of solute at a given temperature.
10 Saturated Dilute Supersaturated Unsaturated 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Adding antifreeze to water ___ the freezing point of the solution.
10 Raises Lowers Stabilizes Fixes 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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As the temperature of a solution increases, the amount of solid solute that is dissolved ___.
10 Increases Decreases Remains the same 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The solubility of a gas in a liquid ___.
10 Increases with decreasing temperature Is independent of temperature Increases with increasing temperature Decreases with decreasing temperature 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Which is the most concentrated solution?
10 0.75 M 1.50 M 3.00 M 6.00 M 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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A ___ is a homogeneous mixture of two or more materials.
10 Solute Solvent Solution Suspension 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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A heterogeneous mixture having particles that settle out is called a ___.
10 Colloid Gelatin Suspension Solution 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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As the pressure increases, the solubility of a gas ___.
10 Stays the same Decreases Increases Is zero 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Which of the following is most effective in lowering the freezing point of ice on roads.
10 CaCl2 NaCl AlCl3 KCl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Properties of solutions that depend on the number, rather than type, of solute particles are ___ properties. 10 Intensive Acidic Qualitative Colligative 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The process of two solutions reacting to form an insoluble product is called ___.
10 Sublimation Evaporation Seeding Precipitation 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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A child notices her balloon is smaller inside her air conditioned house than outside in the sun. This is an example of ___ law. 10 Avogadro’s Boyle’s Charles’ Graham’s 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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According to Boyle’s law, the pressure of a gas will ___ when the volume decreases.
10 Increase Decrease Remain the same 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Air consists of ___. One kind of gas A mixture of several gases
10 One kind of gas A mixture of several gases A single compound Only non-reactive gases 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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All of the following are pressure units except
10 mm Hg atm kPa K 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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As the temperature increases, the motion of particles ___.
10 Increases Decreases Remains the same 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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No molecular motion occurs ___.
10 At night In the atmosphere At absolute zero At the freezing point 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Of the three states of matter, ___ is the highest energy.
10 Solid Liquid Gas 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Particles of matter in the ___ state are moving very quickly and do not form a definite pattern.
10 Solid Gaseous Atomic Nuclear 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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As the temperature in a tank of propane increases, the pressure ___.
10 Increases Decreases Remains constant Decreases, then increases 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Because of its high heat capacity, the temperature of ___ changes slower than most substances.
10 Alcohol Oil Gasoline Water 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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STP is ___. 0oC and 1 atm pressure 0oK and 1 atm pressure
10 0oC and 1 atm pressure 0oK and 1 atm pressure 25oC and 1 atm pressure 273oC and 700 mm Hg 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The process by which a liquid is converted to a gas without boiling is
10 Precipitation Evaporation Condensation Vaporization 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The process by which molecules move from an area of high concentration to an area of low concentration is 10 Bulk flow Diffusion Osmosis Dilution 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The __ the altitude, the lower the pressure.
10 Lower Higher 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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What volume will one mole of a gas occupy under STP?
10 1 L 22.4 L 273 L 293 L 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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What idea can be used to explain both Boyle’s and Charles’ laws?
10 Atomic theory Kinetic molecular theory Law of conservation of matter Law of conservation of energy 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Which law explains why bread rises when baked?
10 Avogadro’s Boyle’s Charles’ Graham’s 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Which law explains why soft drinks “pop” when opened?
10 Avogadro’s Boyle’s Charles’ Kelvin’s 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Any time physical or chemical changes occur, you also ___.
10 Have energy changes Gain mass Lose energy Have color changes 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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In a(n) __ reaction, energy is given off.
10 Endothermic Exothermic Isothermic 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The energy in compounds is held in the
10 Oxygen atoms Hydrogen atoms Chemical bonds between atoms Water molecules 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The minimum energy needed to start a reactions is called the
10 Energy of formation Lattice energy Bond energy Activation energy 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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When chemicals are mixed in a test tube and the test tube becomes hotter, a __ reaction has occurred. 10 Exogenic Exothermic Endogenic Endothermic 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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A compound that speeds up a reaction without being consumed itself is a(n)
10 Additive Catalyst Raw material Resource 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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If you increase the temperature, the rate of reaction will
10 Increase Decrease Remain the same 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Increasing the surface area of a substance will __ the rate of reaction.
10 Increase Decrease Cause no change in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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In chemical equations, “aq” means
10 In a water solution A crystal A pure compound A gas 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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In a combustion reaction, the products are
10 Hydrogen Carbon dioxide and water Oxygen and water oxygen 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The chemicals on the left side of the arrow are called
10 Molecules Reactants Products Sugar 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The reaction A + B AB is what type of reaction?
10 Single displacement Double displacement Decomposition Synthesis 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Which of the following controls the amount of product that is formed?
10 Excess reactant Mole ratio Composition reactant Limiting reactant 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Which of the following is a hydrocarbon?
10 S2O3 C2H6 N2O4 Na2C2O4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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A pH of __ is neutral. 10 1 7 10 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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A solution that changes color based on pH is called a(n)
10 Acid Base Hydroxide Indicator 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Bases usually Feel slippery Taste sour Neutralize salts
10 Feel slippery Taste sour Neutralize salts Have a pH less than 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Blue litmus turns red when a(n) ___ is tested.
10 Base Acid Neutral substance Buffered 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Fruits such as lemons contain ___ acid.
10 Lactic Acetic Citric Nitric 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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On a pH scale a value of ___ represents a strong acid.
10 2 6 8 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The products of a reaction between an acid and a base are always
10 A soap and alcohol A salt and water A soap and water A salt and alcohol 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Which of the following would be classified as an acid?
10 NaCl H2SO4 CaCO3 NaOH 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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___ substances can neutralize bases.
10 Acidic Neutral Basic Alkaline 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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___ is a chemical reaction between an acid and a base.
10 Solubility Saturation Neutralization Aeration 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The pH of normal rainfall is
10 Neutral Alkaline Slightly acidic Basic 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The pH of strong base would be closest to
10 7 1 12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Sour milk contains ___ acid.
10 Acetic Hydrochloric Lactic Nitric 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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The chemical name for NaCl is
10 Sodium chloride Table salt Nadium chloride bleach 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Substances that are neither acidic nor basic are said to be
10 Neutral Alkaline Solutions Ionic 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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A common household acid is
10 Ammonia Vinegar Soap Water 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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