How
many grams are
2 moles NaOH

5

Explanation:

how i dont know tell me full question

The SI base unit for amount of substance is the mole. 1 grams NaOH is equal to 0.025001806380511 mole. Similarly, how many moles are in 80g of NaOH? This expression means that 2 moles (or 2 x 40 g = 80 g) of NaOH are dissolved in enough water to make one liter of solution.

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.