WebJun 1, 2024 · Question 2. Name any three elements of the earth’s crust. Answer: These are silicon, aluminium, iron, magnesium, calcium, potassium, sodium and nickel. Question 3. Name three types of rocks. Answer: Three types of rocks are sedimentary, igneous and metamorphic rocks. Question 4. Common examples of solutions are sugar in water and salt in water solutions, soda water, etc. In a solution, all the components appear as a single phase. There is particle homogeneity i.e. particles are evenly distributed. This is why a whole bottle of soft drink has the same taste throughout. See more Liquid solutions, such as sugar in water, are the most common kind, but there are also solutions that are gases or solids. Any state of matter (solid, liquid, or gas) can act both as a … See more Different properties of solutions are as follows: 1. It is a homogeneous mixture. 2. Its particles are too tiny and have a diameter of less than 1 nm. 3. The particles are not … See more
NCERT Solutions for Class 9 English - Learn CBSE
WebAug 26, 2024 · CBSE Class 9 study materials are provided here for free in PDF format for all the students. The materials given here are for Maths, Science, Social Science, English, and … WebDefinition of Hypotonic Solution. A hypotonic solution means something that has a lower solute concentration in comparison to another solution. A solution is not hypotonic, … cisa tribal emergency communications
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WebApr 12, 2024 · 6 exercises are included in the NCERT Solutions for Class 9 Maths Chapter 1 which are Exercise 1.1 to 1.6. Most of the questions are application based and a few are memory-based questions to test students’ application skills and cognizance. Chapter 1 - Number System Exercises in PDF Format. Exercise 1.1. WebApr 7, 2024 · The concentration of a solution is defined as mass of solute in grams present in 100 g of the solution. For Example : 10% solution of NaCl (10 g of NaCl + 90 g of water) Concentration of solution = (Mass of Solute / Mass of solution) x 100. Mass of solution = Mass of Solute + Mass of solvent. Concentration of solution = (volume of Solute ... WebOct 24, 2024 · A solution is a homogeneous mixture of two or more substances. A solution may exist in any phase . A solution consists of a solute and a solvent. The solute is the substance that is dissolved in the solvent. The amount of solute that can be dissolved in solvent is called its solubility. For example, in a saline solution, salt is the solute ... cisa\u0027s cyber hygiene vulnerability scanning