Chemistry, 20.09.2019 02:50 Animallover100
Hydrofluoric acid (hf) is used to etch glass (sio2). the products of the reaction are silicon tetrafluoride and water. write the balanced chemical equation.
Answers: 1
Chemistry, 22.06.2019 15:00
Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.
Answers: 2
Chemistry, 23.06.2019 00:00
How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?
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Chemistry, 23.06.2019 00:30
An ice cube with a volume of 45.0ml and a density of 0.9000g/cm3 floats in a liquid with a density of 1.36g/ml. what volume of the cube is submerged in the liquid
Answers: 3
Hydrofluoric acid (hf) is used to etch glass (sio2). the products of the reaction are silicon tetraf...
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