3 years ago

Potassium impart purple colour but beryllium do not impart any colour to the flame.Why?

1 answer:

6 0

Answer:

<h2>The electrons in beryllium and magnesium are too strongly bound to get excited by flame. Hence, these elements do not impart any color.</h2>

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By how much will the water temperature increases if 1046 J of heat energy are added. The specific heat of water is 4.184 J/g • °

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Answer:

Option A

250 degrees Celcius

Explanation:

If 1046J of heat energy is added to water, the water will experience a rise in temperature, at a rate that is directly proportional to its specific heat capacity.

Mathematically, this can be seen as $Q=C\Delta T$