Please friends it's an urgent please help please related to chemistry ques chapter ACIDS,BASES & SALTS CHAPTER-4. I'll try to give them brainliest option
Answers
Explanation:
1. Citric acid
2.Lemon change blue litmus paper to red because it's an acid.
3.The flashing light on a car, etc. that shows that it is going to turn right or left.
4.Its name is derived from its "soapy" feel and softness. The name "soapstone" is often used in other ways.
5.A chemical substance that reacts with acid to form a salt. An alkali has a pH value.
6.Strong acids HCl, HBr, HCl, HI, HClO4, H2SO4, and HNO3.
7.Examples of bases are sodium hydroxide, calcium carbonate and potassium oxide. A base is a substance that can neutralize the acid by reacting with hydrogen ions.
8.Sulfuric acid is sometimes referred to as the “king of chemicals” because it is produced... Due to its affinity for water, pure anhydrous sulfuric acid does not exist in nature.
Answer:
16 Citric acid
17 Vivid red
18 An acid - base indicator is a substance that gives different colours in acidic and basic media .
19 Soapstone
20 Soluble bases are called alkali .
21 Hydrochloric acid , nitric acid
22 Sodium oxide , calcium oxide
23 Sulphuric acid