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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
- After burning 1. 5g of some gas, 4. 4g of CO2 and 2. 7g of H2O . . . - Socratic
After burning 1 5g of some gas, 4 4g of CO2 and 2 7g of H2O were produced What is this gas if at STP 1L of this gas weighs 1 34g? ChemistryGasesIdeal Gas Law
- 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
- 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
- Complete combustion of C14H18O7 to CO2 and H2O. You have 315 . . . - Socratic
Complete combustion of C14H18O7 to CO2 and H2O You have 315 0000 grams of C14H18O7 How many grams of O2 are required? How many grams of CO2 are generated? How many grams of H2O are generated? Chemistry
- A cylinder of volume 1m3 is filled with 1kg of CO and 100g of H2O. If . . .
A cylinder of volume 1m3 is filled with 1kg of CO and 100g of H2O If the gases are ideal what is the pressure in the cylinder at ambient temperature? Chemistry
- Which solution has the highest osimatic pressure? (a) 2g . . . - Socratic
Should it not be d ? The number of particles in solution DETRACT from the osmotic pressure And so the LESSER the amount of solute, the LESSER the detraction from osmotic pressure with respect to the pure solvent Of course, we assume the SAME solute in each scenario and thus mass is a good approximation of the number of particles in solution
- An organic compound was taken for combustion. 14. 77 g was . . . - Socratic
An organic compound was taken for combustion 14 77 g was burned in oxygen The result of combustion gave 43 26g of CO2 12 40g of H2O Determine the empirical formula?
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