There are 2 molecules of Carbon dioxide(CO2)
<h3>Further explanation</h3>
Given
Molecules of CO2
Required
The number of molecules
Solution
The coefficient of a molecule shows the number of that molecule, while the subscript after the name of the atom indicates the number of that atom in the molecule
Because there is a coefficient of 2 in front of the CO2 molecule, then the number of CO2 molecules is 2
Nitrogen exists in the ocean in three redox states:
- In + 3 state as ammonium ion, NH4+
- In the 0 state as nitrogen gas
- In the +5 state as trioxonitrate (v) ion, NO3-
<h3>What are redox states?</h3>
The redox state of an element is the charge it appears to have in the free or combined state.
Nitrogen exists in the ocean in three redox states:
- In + 3 state as ammonium ion, NH4+
- In the 0 state as nitrogen gas
- In the +5 state as trioxonitrate (v) ion, NO3-
Therefore, the redox state of nitrogen varies in the ocean.
Learn more about redox state at: brainly.com/question/26263317
Explanation:
All boron isotopes have 5 protons.
B11 has 6 neutrons, so its atomic mass is:
6 (1.008664 u) + 5 (1.007276 u) = 11.0884 u
B10 has 5 neutrons, so its atomic mass is:
5 (1.008664 u) + 5 (1.007276 u) = 10.0797 u
So the average atomic mass of boron is:
0.80 (11.0884 u) + 0.20 (10.0797 u) = 10.8866 u
The closest whole number is 11.
Answer
C. Difference in temperature
Explanation
According to thermodynamics, heat transfer occurs when heat from a high temperature reservoir moves to a low temperature reservoir. For heat to be transferred, the two objects should have different temperatures with one having more temperature than the other. Heat transfer in solids is by conduction, in fluids is by convection and by radiation.