Chemistry, 05.11.2019 12:31 jazzclark79
Consider the following properties: . i) objects made of silver become tarnished. ii) the red color of rubies is due to the. presence of chromium ions. iii) the boiling point of ethanol is 78â—¦. which is/are chemical? .
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An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have
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Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?
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In apex! a liquid heated beyond a certain temperature becomes
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Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17
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Consider the following properties: . i) objects made of silver become tarnished. ii) the red color o...
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