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Chemistry, 21.06.2019 13:00
What is the ph of a solution with a concentration of 5.2 × 10–8 m h3o+?
Answers: 1
Chemistry, 22.06.2019 10:00
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
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Chemistry, 22.06.2019 18:00
Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?
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Computers and Technology, 27.10.2020 18:00
English, 27.10.2020 18:00
Mathematics, 27.10.2020 18:00
Mathematics, 27.10.2020 18:00