When it is dawn on one side of Earth, what is happening on the opposite side?
O A. It is an eclipse on the opposite side of
Earth.
B. It is nighttime on the opposite side of Earth.
C. It is daytime on the opposite side of Earth.
O D. It is dusk on the opposite side of Earth.
LIDT

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation:

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays