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Question #9b627 + Example - Socratic Changes in state are physical changes Let's take water as an example H2O In the gaseous state, we sometimes call it steam or water vapor; it's chemical formula is still H2O In the liquid state and in the solid state (ice), the chemical formula is H2O In a physical change, the original substance is still there - it may be in a different state or shape, but there are no new substances
What is an insoluble substance? + Example - Socratic Explanation: An example of insoluble substance is sand (quartz) in water Thus, sand can be separated from the water by filtration, or and sedimentation On the other hand soluble substance can be Silicon Floride, on reacting sand (SiO2) with hydrofloric (HF) acid, according to the following reaction: SiO2 + HF = Si (F)2 + H2O
Through multiple reactions, a chemist uses C, CaO, HCl, and H2O to . . . Through multiple reactions, a chemist uses C, CaO, HCl, and H2O to produce dichlorobenzene, C4H4Cl2 Assuming that the efficiency of this lab is a minimum of 65 0%, how many molecules of dichlorobenzene could be produced in the lab from 0 500 kg of C?
Site Map - Dipole-Dipole Interactions Questions and Videos | Socratic Is HCl a dipole dipole? Are dipole dipole forces stronger? Is CH3CO2H a dipole dipole? Which intermolecular forces in h2o make ice less dense than liquid water: hydrogen bonding or dipole-dipole? What type of intermolecular force would water molecules have? London dispersion? Dipole dipole? Or hydrogen bonding? What causes dipole-dipole
Answers created by Ernest Z. - Socratic If density is 0 92 g cm–3 at a given temperature, then what is the number of H2O molecules per unit cell? A 9 380 mol sample of nitrogen gas is maintained in a 0 8198 L container at 301 8 K What is the pressure in atm calculated using the van der Waals' equation for N2 gas under these conditions?
Question #ab45a - Socratic Baking soda is NaHCO3 and Vinegar is CH3COOH their reaction in aqueous solution is NaHCO3 +CH3COOH -->CO2 +H2O + CH3COONa Solution will contain sodium acetate and NaHCO3 (if present in excess}
Two tough chemistry questions? - Socratic In the following reaction, at equilibrium, there were 0 30 moles of N2 (g), 2 0 moles of H2 (g) and some amount of NH3 (g) in a sealed 5 0 L flask The KC for the reaction at this temperature is 25 If the reaction began with 1 0 moles of NH3 (g), how much H2 (g) did the reaction start with 3 H2 (g) + N2 (g) >< 2 NH3 (g) Ammonium carbonate can decompose into ice, carbon dioxide and ammonia