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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
Why is H_2 not very soluble in water? | Socratic The trade in energy sucks for H2 (but not so much for water), so the H2⋯H2O interaction is highly unfavored for H2, compared to the H2⋯H2 and H2O⋯H2O interactions So, H2 is very poorly soluble in water Its solubility at 1 atm at 20∘C is 0 00016 g H2 100 g water
Answers created by Paul - Socratic How do you write the formula of an ionic compound? What elements are liquid at room temperature? What do the subscripts mean in a chemical formula? How can I balance this equation? ____ H2 + ____ O2 ---> ____ H2O Is HCl a dipole dipole? Why is the rate of reaction fastest at the beginning? How do particles behave in the three phases of matter?
Question #862f2 - Socratic 2HCl +CrO3 → CrO2Cl2 + H2O If you add these equations together (and balance them out), you'll get the chemical equation that describes the overall reaction I think that some chlorine gas can actually be produced here as a side-product of the reaction, but even if that happens this reaction will still qualify as your answer
Stoichiometry with Acid and Base Dissociation - Socratic What is the balanced chemical equation of Ca2 +H2O >C2H2 + Ca (OH)2? What is the balanced chemical equation that describes the dissociation of the strong base magnesium hydroxide, Mg (OH)2 in water? Can you write the balanced chemical equation that describes the dissociation of the strong base of magnesium hydroxide in water?