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Question 1. Asked on :28 March 2019:05:10:49 PM

Why is respiration considered an exothermic reaction? Explain.

-Added by Rohit rajput Science » रासयिनिक अभिक्रियाए और समीकरण

Answer:

Himanshi Verma

 Respiration takes place in our body cells regularly. This is an exothermic reaction. After breaking down of obtained carbohydrate from food converts into glucose, which provides energy to our body combine with oxygen. Hence the exothermic reaction gives energy in very large quantity so the respiration is also called an exothermic reaction.

-Answered by Himanshi Verma On 28 March 2019:05:12:33 PM


Question 2. Asked on :28 March 2019:05:05:08 PM

 संतुलित रसायनिक समीकरण क्या है ? रसायनिक समीकरण को संतुलित करना क्यों आवश्यक है ?

-Added by Rohit rajput Science » रासयिनिक अभिक्रियाए और समीकरण

Answer:

Himanshi Verma

 जब अभिकारक और उत्पाद दोनों तरफ के प्रत्येक तत्व के परमाणुओं की संख्या समान हो तो ऐसे समीकरण को संतुलित रासायनिक समीकरण कहते है | द्रव्यमान संरक्षण के नियम को संतुष्ट करने के लिए रासायनिक समीकरण को संतुलित किया जाता है |

-Answered by Himanshi Verma On 28 March 2019:05:05:54 PM


Question 3. Asked on :28 March 2019:05:03:45 PM

 वायु में जलाने से पहले मैग्नीशियम रिबन को साफ क्यों किया जाता है ?

-Added by Rohit rajput Science » रासयिनिक अभिक्रियाए और समीकरण

Answer:

Himanshi Verma

वायु में जलाने से पहले मैग्नीशियम रिबन को साफ किया जाता है ताकि वह जलते समय पूरी तरह वायु के संपर्क में रहे | 


-Answered by Himanshi Verma On 28 March 2019:05:06:59 PM


 

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