The duration (length of time) of a lunar eclipse is

Question 9 options:

almost the same as a solar eclipse.

shorter than a solar eclipse.

longer than a solar eclipse.

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

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

If 16.00g of hydrogen gas reacts with 126.73g of oxygen, how many grams of water are yielded? (both reactants are completely consumed in the reaction.)