<span>*Acids taste sour. The lemon, vinegar, tamarind contain acids; that's why they are sour.
*The acids change the color of certain substances called indicators. The indicators have the property of changing color as the character acid or basic solutions. The litmus and phenolphthalein are indicators of acids and bases. The solution of phenolphthalein is colorless red in the presence of an acid. Already the blue litmus paper turns red.
*The acids react with bases to form salts and water. This reaction is called neutralization reaction.</span>
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The overall concentration of hydrogen ions is inversely related to its pH and can be measured on the pH scale Figure 1 It is neither acidic nor basic, and has a pH of 7.0 Anything below 7.0 is ranging from 0.0 to 6.9)is acidic and anything above 7.0 from 7.1 to 14.0 is alkaline.
Answer:
300 gr.
Explanation:
if 204gr/100gr=solubility, then according to the condition solubility=612/x.
It means, 204/100=612/x, where x=612*100/204=300 gr.
The composition of a compound does not vary because it is made up of fix ratio by mass.
<h3>What is compound?</h3>
A compound is a chemical substance that is composed of more than one element that held together by chemical bonds and produces fix ratio by mass so we can conclude that the composition of a compound does not vary because it is made up of fix ratio by mass.
Learn more about compound here: brainly.com/question/634206