Chemical Reactions and Equations Class 10 | Class 10 Science Chapter 1 | Experiment | Balancing chemical equations | Chemical equation | Chemical changes | Physical changes | Class 10 chemistry | CBSE | NCERT
Don’t want to miss your DAILY video, 🔔 SUBSCRIBE:
Get 2021 CBSE Exam Ready in ✅1-month ✅ with DronStudy Crash Course:
👉 Enrol NOW at ✅BUMPER 90% DISCOUNT !! ✅ –
👉 Watch Benefits of Crash Course here:
✅ Student Care number – 8287971571 ✅
👉 Call anytime to talk to DronStudy Education Counsellors for FREE expert guidance
To Access FULL list of Lectures please visit:
For DronStudy Website,
Visit:
To Get Complete course,
Visit:
Follow us on,
.:
Instagram:
✅ Recommended Playlists:
👉 Class 10 Science ALL Chapters
👉 Class 10 Maths ALL Chapters
👉 Class 10 Social Studies ALL Chapters
👉 Class 10 Chemistry
👉 Class 10 Biology
👉 Class 10 Physics
Chemical Reaction:
Whenever a chemical change occurs, we can say that a chemical reaction (permanent change) has taken place which can be expressed symbolically by a chemical equation.
e.g. Food gets digested in our body
Rusting of iron.
We can observe or recognize a chemical reaction by observing change in state, color, by the evolution of gas or by change in temperature.
The physical state of the reactants and the products are mentioned to make a chemical reaction more informative. e.g. we use (g) for gas, (l) for liquid, (s) for solid, and (aq) for aqueous.
Balanced Equation: A balanced equation is one in which the number of atoms on the reactant and product sides is equal.
Physical changes and chemical changes
There are two types of change in the matter: physical change and chemical change.
As the names suggest, a physical change affects a substance’s physical properties, and a chemical change affects its chemical properties. Many physical changes are reversible (such as heating and cooling), whereas chemical changes are often irreversible or only reversible with an additional chemical change.
Physical changes only change the appearance of a substance, not it’s the chemical composition.
Chemical changes cause a substance to change into an entire substance with a new chemical formula.
Chemical changes are also known as chemical reactions. The “ingredients” of a reaction are called reactants, and the end results are called products.
Chemical observations in a chemical reaction
Types of Reaction
Combination Reaction: The reaction in which two or more substances combine to form a new single substance.
Exothermic Reactions: Reaction in which heat is released along with the formation of products.
Endothermic Reaction: The reactions which require energy in the form of heat, light, or electricity are called an endothermic reaction.
All the above-mentioned topics are described in an interactive and efficient manner so that the students could easily understand them.
For more information please,
Call us at 8287971571. You can also WhatsApp us on +91 90540 43867. Thank you!
#class10 #cbsencert #science
🔔 SUBSCRIBE and GET it FREE:
