It is A , each sodium ion is surrounded by one chloride ion . the explanation is because Chlorine needs one more electron to have a full outer most shell , and sodium has one electron in its outer most shell .
The energy transferred is given as the product of power and time. The 1.4 kW kettle with boiled water produces 378 kJ of energy.
<h3>What is energy?</h3>
Energy is the quantitative property that determines the work done by the body in the form of heat and light.
The image showing the kettles with time and power is attached below.
Given,
Power of the kettle = 1.4 kW
Time taken = 4.5 minutes
If power = energy ÷ time
Then, energy = power × time
= 1.4 × 0.075
= 0.105 KWh
Therefore, 0.105 kWh or 378KJ is the energy transferred.
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Answer:
Carbon 12 and carbon 13
Carbon isotope 12 exist as 98.9%
Explanation:
Mg is magnesium. NO3 is nitrate. This gives you magnesium nitrate as an answer.