Which of the following elements will likely form a negative ion in its ionic compounds?
a. li, lithium
c. mg, magnesium
b. al, aluminum
d. cl, chlorine

An exothermic reaction is conducted in an insulated calorimeter filled with water. the calorimeter is then sealed so that there is no heat exchanged between the contents of the container and the surrounding air. which of the following statements is true about the reaction?

Consider the nuclear equation below. 239 > x + 4 he 94 2 what is x? 1.235 cm 96 2.243 u 92 3.235 u 92 4.243 cm 96

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.