Answer:
is it ok na I hope this answers are ok
It’s a Ostrich the bird is an ostrich
Answer:
No
Explanation:
the dissolution of potassium nitrate in water is an endothermic process because hydration energy does overcome the lattice energy and hence it is not spontaneous at all temperature.
Hydration energy: it is a energy released when gaseous ion is dissolve in the water during dissolution it releases.
lattice energy: the energy which is released when one of ionic compound is formed from their gaseous ion is called lattice energy.
thats why to break it we should give minimum this much energy
Classic light bulb running for a full year would use up 876 kWh of energy so yes it does collect energy
Answer:
90yrs
Explanation:
Half life is the time taken for half of an original radioactive material to decay by half.
For the sample;
Half - life = 45yrs
Original amount = 600cpm
Start Number of atoms
0yrs 600cpm
First half life
45yrs 300cpm
Second half life
90yrs 150cpm