What is the solubility of potassium nitrate (kno3) in 100 grams of water at 50 celsius?

90 g/100 g water

Explanation:

I’m guessing that “they” are asking you to interpret a solubility curve something like the one below.

Find the point at 50 °C on the horizontal axis.

From there, draw a vertical line until it meets the solubility curve of KNO₃.

Then, draw a horizontal line to the solubility axis.

It appears to hit the axis at about 90 g/100 g water.

Thus, the solubility of KNO₃ at 50 °C is 90 g/100 g water.

sry but any answer choices

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.