Sorah, Sammie, Victor, Vicki, ond Valerie are in math group. Two students are randomly picked to be the co-captains. What is the probability thote students were ssmmie and Victor?​

Explanation:

Probability refers to chances of occurrence of any event.

Value of probability is greater than or equal to 0 and less than or equal to 1.

Probability = Number of favorable outcomes ÷ Total number of outcomes

Total number of students in math group = 5

Also, 2 students are randomly picked to  be the co-captains.

Probability that students were Sammie and Victor =

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.