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  • 1 answers

Devanshi Dhaka 1 year, 2 months ago

Magnesium ribbon reacts with oxygen present in air to farm a protective and inert layer of magnesium oxide on its surface. This layer doesn't react and also prevents the ribbon from burning. Thus it have to be rubbed with sandpaper before burning so that the layer is removed😊
  • 4 answers

Nirdosh Shakya 1 year, 2 months ago

Magnesium ribbon reacts with oxygen in the atmosphere to form a layer of magnesium oxide which prevents it from burning.Thus, it is necessary to clean the magnesium ribbon with sand vapour before burning it

Ramita Jha 1 year, 2 months ago

A magnesium ribbon be clean before burning in air. It is because to remove the layer of magnesium carbonate .

Piyush Kuntal 1 year, 2 months ago

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Poorvaja Umashankar 1 year, 2 months ago

It contains the atmospheric oxygen before cleaning, and it becomes pure after rubbing it with the sand paper .
  • 1 answers

Upendra Bapat 1 year, 2 months ago

For a convex lens the image would be virtual and enlarged when the object is kept between the optical centre and the principal focus. It will change to real and enlarged when the object is kept between F1 and 2F1. For a concave lens, in both the cases the image will be virtual and diminished.
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Poorvaja Umashankar 1 year, 2 months ago

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  • 4 answers

Atul Yadav 1 year, 1 month ago

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Nirdosh Shakya 1 year, 2 months ago

Blood I guess as it transports oxygen and CO2 in it

Nirdosh Shakya 1 year, 1 month ago

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Abhas Jaiswal 1 year, 2 months ago

Food -mouth -oeshofagus - stomach -small intestine -function of liver and pancreas take place -large intestine - eliminate out through ****
  • 2 answers

Abhas Jaiswal 1 year, 2 months ago

CaO

Dipti Thakur 1 year, 2 months ago

Which chemical is used for white washing
  • 3 answers

Satyam 1 year, 2 months ago

Magnesium reacts with oxygen to form magnesium oxide (MgO). This reaction is exothermic, meaning it releases a lot of heat, and produces light that can temporarily blind you.

Pritee Soni 1 year, 2 months ago

When a composition reaction is carried out between magnesium and the oxygen present in air , an oxide is formed known and Magnesium Oxide. # Magnesium reacts with oxygen when heat is supplied. Hope you got your answer.......

Rohan Vyas 1 year, 2 months ago

Magnesium oxide
  • 4 answers

Abhas Jaiswal 1 year, 2 months ago

Virtual Errect Convex mirror used and Enlarge

Poorvaja Umashankar 1 year, 2 months ago

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Surya Kumar 1 year, 2 months ago

In lens::real,inverted,enlarged

Surya Kumar 1 year, 2 months ago

In mirror Virtual Erect Bigger in size Enlarged
  • 2 answers

Anuj Chaturvedi 1 year, 2 months ago

4

Adarsh Pandey Ã…p 1 year, 2 months ago

4 type of teeth
  • 1 answers

Rayyn Pandey 1 year, 2 months ago

Rectent
  • 1 answers

Sumit Sahani Gkp 1 year, 2 months ago

119 elements name
  • 1 answers

Upendra Bapat 1 year, 2 months ago

Potential Difference is measured across two points on a conductor. In case of parallel circuit, both resistors have their ends connected to same battery source across same two points. Hence the potential difference remains the same for both.
  • 1 answers

Atmajyotisha Routray 1 year, 2 months ago

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  • 3 answers

Ansh Yadav 1 year, 2 months ago

Precipitation reaction means the change of colour in any particle is know as precipitation

Sahil Singh Rawat 1 year, 2 months ago

Centre of Indian economy

Sahil Singh Rawat 1 year, 2 months ago

Development reports
  • 3 answers

Piyush Kuntal 1 year, 2 months ago

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Ankita Yadav 1 year, 2 months ago

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Sahil Singh Rawat 1 year, 2 months ago

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  • 2 answers

Ankita Yadav 1 year, 2 months ago

Anything remain lived for need a any living organising that is called life process

Sadiya Parween 1 year, 2 months ago

What is Life process
  • 1 answers

Vedika Tiwari 1 year, 2 months ago

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  • 2 answers

Krishna Singh 1 year, 2 months ago

Yes

Krishna Singh 1 year, 2 months ago

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  • 2 answers

Account Deleted 1 year, 2 months ago

potassium

Ongchuk Gyalsten Sherpa 1 year, 2 months ago

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  • 3 answers

Ankita Yadav 1 year, 2 months ago

Photons re is a packets of energy find in light

Vedika Tiwari 1 year, 2 months ago

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Aditya Kumar Kar 1 year, 3 months ago

What is chemical reactions
  • 0 answers
  • 1 answers

Upendra Bapat 1 year, 2 months ago

Ca(OH)2 + 2HNO3 > Ca(NO3)2 + 2H2O HNO3 is well known as nitric acid.
  • 1 answers

Amit Pathariyaan 1 year, 3 months ago

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  • 3 answers

Atmajyotisha Routray 1 year, 2 months ago

2HNO³+Ca(OH)²--Ca(NO³)²+2H²O

Navya B 1 year, 3 months ago

4HNO³+2Ca(OH)²-2Ca(NO³)²+2H²O

Raunak Gupta 1 year, 3 months ago

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  • 2 answers

Poorvaja Umashankar 1 year, 2 months ago

It produces dazzling white flame during burning and gives white powder as the result of the occurred reaction

Shivangi Mittal 1 year, 3 months ago

It appears like a white powder
  • 3 answers

Raunak Gupta 1 year, 3 months ago

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Pravesh Poudyal 1 year, 3 months ago

Presbyopia: It is a defect in which a person can neither see nearby objects clearly nor the distant object. It usually occurs to a person at old age. It is corrected by using bifocal lens.

Pravesh Poudyal 1 year, 3 months ago

What is Electric power?
  • 2 answers

Khushi Malik 1 year, 3 months ago

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Not Fine Bro 🎭 1 year, 3 months ago

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  • 3 answers

Maitra Naik 1 year, 3 months ago

Because if Silver Chloride (AgCl) is kept in sunlight, it decomposes into Silver (Ag) and Chloride (Cl). So, to avoid this process (reaction), Silver Chloride is kept in dark coloured bottle. The chemical equation of this reaction is as follows- 2AgCl(s)-> 2Ag(s) + Cl2(g)

Mounindra Reddy Sdr 1 year, 3 months ago

Because black observes sun light stops in entering into bottle,it will react by decomposing

Not Fine Bro 🎭 1 year, 3 months ago

We store silver chloride in dark coloured bottle so that it can not
  • 2 answers

Jayant Chopra 1 year, 3 months ago

2H + O2 ------> 2(H2O)

Lakshay Gupta 1 year, 3 months ago

Electrolysis of water, liberate hydrogen and oxygen in ratio of 2:1

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