Vinegar Vinegar is a solution of organic acid (ethanoic acid, CH3COOH). Vinegar is widely used for several domestic purposes including the removal of ‘fur’ or ‘lime’ from kettles. A housewife found that when she cleaned her kettle with a brand of vinegar called ‘VineGo’, it took 12 hours for the ‘fur’ to be completely removed. However, when she used a brand called ‘Sparkling White’, is took only 2 hours to remove the same amount of fur.

Propose a hypothesis to explain this observation.
Plan and design an experiment to test your hypothesis.

During metamorphic processes, increased pressure and temperature can affect the of minerals in rock. rocks subjected to very high pressure are typically than others because mineral grains are squeezed together, and the atoms are more closely packed. during metamorphic processes, water facilitates the transfer of ions between and within minerals, which can the rate at which metamorphic reactions take place. the growth of new minerals within a rock during metamorphism has been estimated to be about per million years. metamorphism is commonly associated with convergent plate boundaries, where two plates move toward each other. during contact metamorphism, a large intrusion will contain thermal energy and will cool much more slowly than a small one. metamorphosed sandstone is known as the metamorphic rock made from metamorphosed shale, was once used to make blackboards for classrooms.

Use the gizmo to find the concentration of the mystery ch3cooh. use the titrant and indicator shown below perform the titration. what is the titrant volume? titrant analyte indicator titrant volume analyte concentration naoh ch3cooh phenophthalein select one: a. 20.0 ml b. 27.0 ml c. 30.0 ml d. 24.0 ml

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar