La relación de los números de masa de 2 isótopos es 7/5. Si la diferencia de sus neutrones es 6,
¿cuál es la suma de sus números de masa?​

Explain how carbon monoxide can cause death

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?