A theory is something that has been proven a few times, so yes it’s been consistent in science but not enough. A law is something multiple scientists have proven to be true multiple times, causing it to be a law.
253.15
The temperature T in degrees Celsius (°C) is equal to the temperature T in Kelvin (K) minus 273.15:
T(°C) = T(K) - 273.15
Oxygen and carbon are element combinations that will most likely form polyatomic ions.
Answer:
It's because the NaCl and MgCl2 is shorter and easier to remember