Which of the following represents a beta decay? O A. 220/86 Rn → 294/84Po + 4/2 He
O B. 60/28 Ni → 60/28 Ni + y
C. 235/93 Np → 23/91 Pa+ x
O D. 213/83 Bi → 214/84 Po+0/-1e

Light waves travel than sound waves.

Using this reversible reaction, answer the questions below: n2o4 2no2 (colorless) (reddish-brown) -as the temperature increased, what happened to the n2o4 concentration? -was the formation of reactants or products favored by the addition of heat? -which reaction is exothermic? right to left or left to right? -if the change of enthalpy of this reaction when proceeding left to right is 14 kcal, which chemical equation is correct? n2o4 2no2 + 14 kcal n2o4 2no2, hr = +14 kcal n2o4 + 14 kcal 2no2 n2o4 2no2, hr = -14 kcal

Which number should be placed before f2 on the reactants side equation to make equation balanced? xe + > xef4