Indique la veracidad (V) o falsedad (F) de las siguientes proposiciones: - La velocidad de un automĂłvil es una cantidad fĂsica ( ) - La fuerza es una cantidad fĂsica escalar ( ) - El tiempo es una cantidad fĂsica fundamental ( ) - La masa es una cantidad fĂsica vectorial ( )
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Chemistry, 21.06.2019 16:40
Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.
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Chemistry, 21.06.2019 18:00
When the following equation is balanced using the smallest possible integers, what is the coefficent of oxygen gas? c7h16o(g) + o2(g) â co2(g) + h2o(g) -1 -5 -8 -16 -21
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Chemistry, 22.06.2019 11:00
An object becomes electrically charged when: electrons are created in it electrons from it are destroyed electrons are transferred to it protons from it are destroyed protons are created in it
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Chemistry, 22.06.2019 20:00
There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) â c2h2 (g) + caoh2 (s) =δhâ414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) â 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .
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Indique la veracidad (V) o falsedad (F) de las siguientes proposiciones: - La velocidad de un automĂł...
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