- Which of these samples of gas contains the same number of atoms as 1 g of hydrogen?

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How you would prepare 275 mL of a 0.58 M NaCl solution from a stock solution of NaCl having a concentration of 1.29 M? Ayuda me dejaron completar la reacción efectuada e indicar el nombre de los reactivos y productos.
CaO(aq) + CO2(g)-
POR FAVOOORR? I want to aid in bringing break through advancements in technology. But how should I start? who do I contact? Please help.? Can someone solve this.. dy/dx = [x^2] / [1-y^2]? A fair coin is tossed 5 times. What is the probability of at least one head? Round to the nearest ten-thousandth.?