Chemistry, 25.07.2019 14:00 olejlund7838
One way to refine iron from iron ore is to heat the ore with hydrogen gas at high temperatures. which change increases the amount of iron produced in the equation fe 3 o 4, solid, plus 4 h 2, gas, plus energy in equilibrium with 3 fe, solid, plus 4 h 2 o, gas?
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The identities of substances are the same before and after which type of change
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Chemistry, 22.06.2019 20:40
What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.
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With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals
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Malia was able to make a paper clip float on the surface of water what will most likely happen to the paper clip if a drop of dishwashing detergent is added near it
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One way to refine iron from iron ore is to heat the ore with hydrogen gas at high temperatures. whic...
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