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Definition
| The measurement of the gravitational pull on an object is its |
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| calcium, phosphorus, oxygen, hydrogen |
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Definition
| What elements are in hydroxyapatite, Ca5(PO4)3OH, a major compound in human bones and teeth? |
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Definition
| The phrase "ability to do work" is a definition of |
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| The temperature of steam cannot exceed 100 degrees C |
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Definition
| Which of the following does NOT represent a step on the heating curve of water? |
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Definition
Which of the following elements is a nonmetal?
-silver
-nitrogen
-calcium
-sodium
-iron |
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Definition
| A calculator answer of 423.6059 must be rounded off to three significant figures. What answer is reported? |
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| the coldest temperature possible |
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Definition
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Definition
| The measurement 0.0000043 m, expressed correctly using scientific notation, is |
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Definition
| How many significant figures are there in the number 0.00208? |
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Definition
| Which of the following is a measurement of mass in the metric system? |
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Term
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Definition
| The metric unit for volume is the |
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Term
| the accuracy of the conversion factor |
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Definition
| Significant figures are important because they indicate |
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Term
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Definition
Identify the metalloid in the following list.
-silver
-copper
-germanium
-fluorine
-sulfur |
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Term
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Definition
| A value of 25 degrees C is a measurement of |
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Term
| pouring water into a vacuum-insulated bottle |
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Definition
| Which of the following does NOT involve a change of state? |
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Term
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Definition
| Which of the following is a chemical change? |
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Term
| the same atomic number but different number of neutrons |
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Definition
| Isotopes are atoms of the same element that have |
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Term
| has randomly arranged particles |
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Definition
| Which of the following is a physical property of both liquids and gases? |
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Term
| water stored in a resevoir |
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Definition
| Which of the following is an example of potential energy? |
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Term
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Definition
| What is the symbol of the element in period 4 and group 2? |
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Term
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Definition
| An example of kinetic energy is |
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Term
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Definition
| The energy stored in the chemical bonds of a carbohydrate molecule is |
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Definition
| The formation of a gas resulting from the escape of high-energy particles from the surface of a liquid is known as |
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Term
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Definition
| Which of the following elements is a metal? |
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Term
| balsa wood (density = 0.16 g/mL) |
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Definition
| Which of the following will float in gasoline, which has a density of 0.66 g/mL? |
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Term
| very large relative to the size of molecules |
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Definition
| In a gas, the distance between the particles is |
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Term
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Definition
| In an atom, the nucleus contains |
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Definition
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Definition
| The ratio of the mass of a substance to its volume is its |
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Definition
| The dietary calorie (Cal) is equal to how many kilocalories? |
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Term
| movement of the Earth closer to the sun |
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Definition
| Global warming is believed to result from all of the following EXCEPT |
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Term
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Definition
| The density of a solution is 1.18 g/mL. Its specific gravity is |
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Term
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Definition
| The primary substances of which all other things are composed are |
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Term
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Definition
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| are unreactive and are rarely found in combination with other elements |
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Definition
| The Group 8A(18) elements |
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Term
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Definition
| The number 68000000.0 expressed correctly using scientific notation is |
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Term
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Definition
| Which of the following is a physical change? |
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Term
| Electrolysis- zap water with electricity to get 2 volume of hydrogen and 1 volume of oxygen |
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Definition
| Explain how you would separate pure water into its component parts. |
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Term
| Use a chromatography stick- the components will travel at different rates up the paper |
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Definition
| Explain how you would separate black in into its component parts. |
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