Chemistry, 04.07.2019 19:20, barbaramathews1123
The extraction of aluminum metal from the aluminum hydroxide in bauxite ore by the hall-héroult process is one of the most remarkable success stories of late 19th century practical chemistry, turning aluminum from a rare and precious metal into the cheap commodity it is today. in the first step, aluminum hydroxide reacts to form alumina and water: 2al(oh)3(s)-> al2o3(s)+3h2o(g) in the second step, alumina and carbon react to form aluminum and carbon dioxide: 2al2o3(s)+3c(s)-> 4al(s)+3co2(g) write the net chemical equation for the production of aluminum from aluminum hydroxide and carbon. be sure your equation is balanced.
Answers: 3
Chemistry, 22.06.2019 05:00, Ashleyvasquez2261
Type the letter that represents the correct location for each particle type below.
Answers: 1
Chemistry, 22.06.2019 06:30, Pizzapegasus1
Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line
Answers: 1
Chemistry, 22.06.2019 17:40, aaliyahthomas37
Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.
Answers: 1
Chemistry, 22.06.2019 20:20, Matseleng3775
The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.
Answers: 1
The extraction of aluminum metal from the aluminum hydroxide in bauxite ore by the hall-héroult proc...
Mathematics, 23.06.2019 22:40
Physics, 23.06.2019 22:40