You have two beakers. One beaker contains 100 mL of NaOH (a strong
base); the other contains 100 mL of aqueous Na PO, (a weak base). You
test the pH of each solution. Which of the following statements is true? *
A)
It is possible for the solutions in each beaker to have the same pH.
B)
The Na PO, has a higher pH because it has more sodium ions than NaOH.
C) If the pH of the NaOH solution is 12.00, the pH of the Na PO, solutions has to be
greater than 12.00.
D) If the pH of the NaOH solution is 12.00, the pH of the Na PO, solution has to be less
than 12.00

the answer is false because not all countries have geysers under their crust. for example, iceland uses geothermal energy because it is available every in their country.  

c is the answer because when something is left after something evaporates that shows the chemical change.

2b2t

explanation:

2b2t

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.