C. A sample may contain any or all of the following ions Hg2 2, Ba 2, and Al 3. 1) No precipitate forms when an aqueous solution of NaCl was added to the sample solution. 2) No precipitate forms when an aqueous solution of Na2SO4 was added to the sample. 3) A precipitate forms when the sample solution was made basic with NaOH. Which ion or ions were present. Write the net ionic equation(s) for the the reaction (s).

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Use the periodic table and your knowledge of isotopes to complete these statements. when polonium-210 emits an alpha particle, the child isotope has an atomic mass of 1-131 undergoes beta-minus decay. the chemical symbol for the new element is fluorine-18 undergoes beta-plus decay. the child isotope has an atomic mass of done intro donne

Match the following items to the correct description. 1. detainment centers for many of hitler's "undesirable" citizens, including those of the jewish race inflation 2. a form of fascist government; probably the most extreme form of tyranny first month of 1933 3. leadership taken and directed by force, often with bloodshed. an oppressive regime tyrannical government 4. financial instability brought on by price increases nazism 5. hitler became the prime minister concentration camps