Chemical Reaction and Equations
Madhya Pradesh Board · Class 10 · Science
Flashcards for Chemical Reaction and Equations — Madhya Pradesh Board Class 10 Science. Quick Q&A cards covering key concepts, definitions, and formulas.
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See them allWhat is a chemical reaction?
Answer
A chemical reaction is a change in which new substance or substances are formed. Common signs are change in state, change in colour, evolution of a gas, and change in temperature.
रासायनिक अभिक्रिया क्या है?
Answer
रासायनिक अभिक्रिया एक परिवर्तन है जिसमें नया पदार्थ या पदार्थ बनते हैं। सामान्य लक्षण हैं अवस्था में परिवर्तन, रंग में परिवर्तन, गैस का विकास और तापमान में परिवर्तन।…
Why is a magnesium ribbon cleaned before burning in air?
Answer
It is cleaned to remove the outer layer of magnesium oxide so that magnesium burns properly in air.
मैग्नीशियम रिबन को हवा में जलाने से पहले क्यों साफ किया जाता है?
Answer
मैग्नीशियम ऑक्साइड की बाहरी परत को हटाने के लिए इसे साफ किया जाता है ताकि मैग्नीशियम हवा में ठीक से जले।…
Write the word equation for burning magnesium in oxygen.
Answer
Magnesium + Oxygen → Magnesium oxide…
ऑक्सीजन में मैग्नीशियम जलाने के लिए शब्द समीकरण लिखें।
Answer
मैग्नीशियम + ऑक्सीजन → मैग्नीशियम ऑक्साइड…
What is a skeletal chemical equation?
Answer
A skeletal chemical equation is an unbalanced equation in which atom counts are not equal on the two sides. Example: Mg + O2 → MgO…
कंकाल रासायनिक समीकरण क्या है?
Answer
कंकालीय रासायनिक समीकरण एक असंतुलित समीकरण है जिसमें दोनों तरफ परमाणुओं की संख्या बराबर नहीं होती है। उदाहरण: Mg + O2 → MgO…
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