What is the physical state of each of these materials at room temperature?
a. gold
b. gas...
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Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o
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Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.
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Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.
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