The total reaction of the nickel-cadmium battery, used in pocket calculators, is: XCd (s) = XNiO2 (s) + YH2O XCd (OH) 2 (s) + X Ni (OH) 2 (s) If X = 26, what is the value of Y?

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.