A 2.000-g sample containing Na2CO3 (FM 106.0) is titrated with 0.8500 M HCl. The titration is fully completed with 25.00 mL of HCl. Calculate the percentage of sodium carbonate in the sample (assuming other compositions in the sample does not react with HCl). Na2CO3 2 HCl2NaCl H2O CO2 A. 55.55% Na2CO3 B. 71.62% Na2CO3 C. 43.53% Na2CO3 D. 44.45% Na2CO3 E. 56.31% Na2CO3

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 food using pesticides in the future will harm you by giving you diseases like cancer or something since they have things that we should not eat in it like chemicals or pesticides. that is why organic food is more expensive because they take the time to make it right and healthy for you to eat.

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