If the measured mass of an element is numerically equal to its molar mass, then you have indirectly counted 6.02 x 1023 atoms of the element in the measurement. For each problem in Column A, select from Column B the letter of the conversion factor needed to solve the problem. (NOTE: Two questions have two answers.) Column A Column B 20. Find the number of moles in 23.0 g of zinc. 21. Find the mass of 5.0 x 1020 zinc atoms. 22. Find the mass of 2.00 moles of zinc. 23. Find the number of atoms in 7.40 g of zinc. 24. Find the number of moles that contain 4.25 x 1027 zinc atoms. 25. Find the number of atoms in 3.25 moles of zinc. a. 65.4g Zn/1 mol Zn b. 1 mol Zn/65.4g Zn c. 6.02 x 1023 atoms Zn/1 mol Zn d. 1 mol Zn/6.02 x 1023 atoms Zn

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.

The pressure in a fluid is affected by which characteristics of that fluid

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