75.0 grams of an unknown metal was heated to 95.0°C, it was then placed into 150.0 grams of water at23.1°C, when the metal and water reached thermal equilibrium, the temperature was 27.8°C. Calculatethe specific heat of the metal. (Assume that the specific heat of water is 4.18 J/g °C)

Please correct answer and don't used hand raiting

A 25.0 g sample of water was cooled from 23.9°C to 12.7°C, how much heat was released? (Assume thatthe specific heat of water is 4.18 J/g °C)

Zeolites: environmental applications.

" is The structure of the bicarbonate (hydrogen carbonate) ion, HCO3-, HCO3 best described as a hybrid of several contributing resonance forms, two of which are shown here. HO :0: :Ö: HO + Bicarbonate is crucial for the control of body pH (for example, blood pH: 7.4). A more self-indulgent use is in baking soda, where it serves as a source of CO2 CO₂ 2 gas, which gives bread and pastry their fluffy constituency. (i) Draw at least one additional resonance form. = (ii) Using curved "electron-pushing" arrows, show how these Lewis structures may be interconverted by movement of electron pairs. (iii) Determine which form or forms will be the major contributor(s) to the real structure of bicarbonate, explaining your answer on the basis of the criteria in Section 1-5.

Which of these is the best use of a volumetric flask? measuring how much liquid it contains delivering a precise amount of liquid to another container holding solutions making solutions of precise concentration

You're competing on a Great British television game show, and you need to bake a cake. The quantity for each ingredient is given in grams, but you haven't been given a kitchen scale. Which of these properties would correlate with the mass of a baking ingredient like eggs or milk? Check all that apply. depth of color viscosity volume density

Draw a Lewis structure for each of the following species. Again, assign charges where appropriate. a. H-H¯ b. CH3-CH3 c. CH3+CH3 d. CH3 CH3 e. CH3NH3+CH3NH3 f. CH30-CH3O¯ g. CH2CH2 - h. HC2-(HCC) HC2 (HCC) i. H202×(HOOH) H₂O₂ (HOOH) Norton

Is molecule 6 an enantiomer?