Physical VS Chemical
Melting Ice
What is physical?
Calculate the heat absorbed by 100g of iron when it increases in temperature from 25°C to 55°C. (C = 0.450 J/g°C)
What is 1350 J?
The number of protons in a neutral atom of oxygen.
What is 8?
The nuclear symbol of the daughter isotope formed from the alpha decay of Uranium-238.
What is 23490Th?
The average atomic mass of an element with 75% isotope A (mass = 10 u) and 25% isotope B (mass = 11 u) to 2 decimal places.
What is 10.25 amu?
Rust forming on iron
What is chemical?
How much heat is required to raise the temperature of 50g of water by 10°C?
What is 2090 J?
The number of neutrons in carbon-14.
What is 8?
The nuclear symbol of the daughter isotope formed from the beta decay of lead-211.
What is 21183Bi?
An element has two isotopes: 60% at 24.0 u and 40% at 26.0 u. This is the average atomic mass of the element to 1 decimal place.
What is 24.8 amu
Flammability
What is chemical?
If 836 J of heat raises the temperature of 200g of a substance by 2°C, what is the specific heat capacity?
What is 2.09 J/g°C?
The number of electrons in a Ca²⁺ ion.
What is 18?
The nuclear symbol for the isotope formed from the gamma decay of uranium-238.
What is 23892U?
An element has two isotopes: 80% at 35 amu and 20% at 37 amu. This is its average atomic mass to 1 decimal place.
What is 35.4 amu?