practice-chem - Does a log rolling down a hill represent...

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Write the symbol of each of these five elements. Selenium Tungsten Fluorine Arsenic Potassium Write the name of each of these five elements. Au Ti P Co Rn Potasium is a very reactive element. What do we call horizontal rows of elements on the periodic table? 1. Classify the following statement as chemical change, chemical property, physical change, or physical property.
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Balance the equation: How many sig figs: a) 0.02030 b) answer to: (1.3 * 68.55)/21.4 = Write the number 703000 in scientific notation. Write the number 8.92 x 10^-4 in decimal notation. What is the phase of each of the following at room temperature? a) oxygen b) copper Write the correct name of each of the next two compounds. How many ounces are in 0.723 kilograms? What is the charge of a proton? What is the mass un amu's of a neutron?
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Unformatted text preview: Does a log rolling down a hill represent potential energy or kinetic energy? Why. a) vegetable soup b) silicon dioxide What will be the charge of a neutral atom after it gains 3 electrons? ______P 4 + _____O 2---> _____P 2 O 3 H 2 SO 3 Cr(NO 3 ) 2 Classify each of the following two as compound, element, heterogeneous mixture, or homogeneous mixture. Is this atom now a cation or an anion? Write the correct formula of each of the next three compounds. aluminum sulfide manganese(II) phosphate dinitrogen trioxide the reagent that is used up first when a chemical reaction goes to completion atoms of the same element with different number of nuetrons the study of matter and its properties...
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practice-chem - Does a log rolling down a hill represent...

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