For the reaction 2 Na + 2 H2O --> 2 NaOH + H2 , how many grams of Sodium Hydroxide( NaOH) are produced from 3.4 moles of water?

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

Using the periodic table, complete the table to describe each atom. type in your answers