A reaction between 60.53 mL of calcium nitrate and excess potassium hydroxide produces 2.35 g of precipitate. Calculate the concentration of calcium nitrate that reacted. a. Write the net ionic equation for the reaction described above. Identify the precipitate. b. Determine the concentration of the calcium nitrate solution.

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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the answer is 303.15 or 303