Himika Saxena The indicators tells us the given substances are acidic or basic in nature by changing the colour and olfactory indicators change their smell or odour when they come in contact with an acid or base. Aim of activity To observe the changes in odour of cloth strips soaked in onion, vanilla essence and clove … Read more
Aim of the activity To test the acid bases using different indicators and record the observation to understand the acidic and basic nature. Material used in the activity Samples of acids and bases Hydrochloric acid (HCl) Sulphuric acid (H2SO4) Nitric acid (HNO)3 Acetic acid (CH3COOH) Sodium hydroxide (NaOH) Calcium hydroxide [Ca(OH)2] Potassium hydroxide (KOH) … Read more
To perform the activity from the chemical reactions and equations, we should follow the following method. Material used in the activity China dish Copper powder Burner Procedure We will take 1 g copper powder in a china dish and put it on the burner and heat it for some time and observe the change. … Read more
Class 10 Science Chapter 1 Chemical Reactions and Equations consists many activities. we will discuss group activity chapter 1 class 10 science with a completed explanation. Aim of group activity To find which reactions are exothermic and which are endothermic. Material Required Four beakers Water Copper sulphate [CuSO4] Potassium sulphate [K2SO4] Ammonium nitrate [NH4NO3] … Read more
There are different methods of balancing a chemical equation. We have already discussed hit and trial method. Today we will go through some examples of balanced chemical equations with answers. Examples of Balanced Chemical Equations 1.CH4 +O2 → CO2 + H2O Ans- CH4 +O2 → CO2 + 2H2O 2.Na+ H2O → NaOH + H2 Ans- 2Na+ … Read more
Through this glass slab experiment, we can easily identify refraction of light. Through this experiment we can find the lateral displacement of light ray after refraction. What is refraction? The phenomenon of change in path of light as it moves from on transparent medium to another transparent medium, is called refraction of light. Define lateral … Read more
Table 10.1 contains image formation by a concave mirror when the object is placed at different places.in this topic we will cover the image formation with ray diagram. On the basis of the table, we will discuss all the position of object one by one Object is placed before the concave mirror (i) image … Read more
Table 2.1 class 10 science solutions belongs to chapter 2 Acids, Bases and Salts.In this post, we will discuss colour change of different solutions with given indicators. We know that substances or solutions are classified as acids or bases and they show different colour change with different indicators. Table 2.1Class 10 Science We have given … Read more
Characteristics of ionic compounds for class 10 is being discussed here. the topic belongs to chapter 3 Metals and non-metals. We know metals are the elements that lose or donate electrons and non-metals gain or accept electrons. Metals are electropositive elements and non-metals are electronegative elements. Before we dive into the topic characteristic of ionic … Read more
Here we will discuss chemical properties of metals class 8 notes which includes reactions with oxygen, with water, with acids, with bases and displacement reactions of metals. After reading this post you will be able to answer all the questions asked in the examination. Chemical reactions of metals class 8 Notes We must go through … Read more