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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
What is a double replacement reaction? How are they . . . - Socratic The clue lies in the name itself Double displacement reactions occur when two ionic compounds react, or when an ionic compound reacts with an acid It only occurs in liquids There are 5 types of double displacement reaction, as shown below: Salt + salt = insoluble salt + salt Acid + carbonate = salt + H2O + CO2 Acid + base = salt + H2O Ammonium + hydroxide = salt + H2O + NH3 Acid + sulfite
Site Map - Percent Concentration Questions and Videos | Socratic Given the following equation: C6H8O7 + 3NaOH --> Na3C6H5O7 + H2O What is the percentage by mass of citric acid in the orange juice? How many grams of HCI are there in 100 0 mL of concentrated HCl which is approximately 12 1M and 37% HCl by weight and the density of 1 191 g mL?
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}