1. to save space as less goes to landfill
2. acidic soil as OH is alkali
3. nitrates (ammonia is nitrogen and hydrogen)
4. I don't know this one sorry
5. CaCO3 is limestone and when it is heated its called thermal decomposition
Answer:
The devise used to convert thermal energy to mechanical energy are called heat enignes
Answer:
I think it is three times I'm not sure
-2 cuz 20 negative minus 18 positive is -2
The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system mass cannot change quantity if it is not added or removed. Hence, the quantity of mass is "conserved" over time.