Para la limpieza, a veces las amas de casa disuelven en vinagre bicarbonato de sodio, al hacerlo se absorbe calor y sentimos el reciente frío. Tipo de reacción?

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work

What is the wavelength of a wave with a velocity of 50 m/s and a frequency of 5hz a 250 m b 0.1 m c 10m d 0.01 m