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Changes in Solid and Liquid States
Matter exists in three different states: solid, liquid, and gas. Depending upon its physical properties, matter will be found in one of these states at ambient temperature and pressure.
Describe a situation where a substance changed between the solid and liquid states or between liquid and gas states? Can you describe an example of when a substance changed between the gas and solid states? Let's see how many different examples we can describe.
The half of cesium-137 is 30.2 years. If the initial mass of sample of cesium-137 is 1,000 g, how much cesium will remain after 151 years.
We are asked to write the balanced equation when glucose is reacted with ammonium chloride + epichlorohydrin + isopropyl alcohol. What is the ultimate end product? Hopefully it is supposed to be some form of a quaternary ammonium radical attached to ..
how many grams of K2SO4 would you need to prepare 1500g of 5.0% K2SO4 (m/m) solution?
What mass of Sucrose(C12H22O11) should be combined with 456g of water to make a solution with an osmotic pressure of 8.05atm at 280K
The Cl- is at equilibrium across the membrane while the protein is inside the cell and cannot permeate the membrane. Determine the concentration of Pr+/- (in M)?
Which instrument can be used to determine the total calcium in a small blood sample.suggest a second method suitable for determine the free calcium ions on a similar sample of bood.
Determine the molecular formula of the compound at the temperature of 120 degrees celsius and Pressure 750 mm hg, if 1 l of the gaseous compound weighs 2.3 grams? '
Compute the mass of an electron if the difference in the mass of 100 moles each of sodium atoms and sodium ions is 5.48002 grams?
Compute the mass of H 2 O formed when 22 grams of propane are burnt if 4.4grams of propane are burnt in excess O2 7.2g of H 2 O are formed.
Determine which girl has the solutions at the concentrations desired and Girl A dilutes 10 mL stock solution to a final volume of 20 mL. Girl B dilutes 10 mL stock solution to a final volume of 40 mL.
If a sample of 0.190 grams of KCN is treated with an excess of HCL, calculate the amount of HCN formed, in grams.
The concentration of each gas once equilibrium is reached. The new equilibrium concentrations if the volume is suddenly halved (still at 298K)
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