So we have an equilibrium expression:
CO(g) + 3H2(g) <=> CH4(g) + H2O(g)
The equilibrium expression is the concentration of each product (excluding solids and liquids in all cases) raised to the power of their coefficient, all divided by the concentration of each reactant (again, excluding solids and liquids). Noting that brackets around a molecule indicate concentration, the expression would be:
([CH4]*[H2O])/([CO]*[H2]^3)
A.<span>In this stage, the chromosomes begin to spread out across the center of the cell.</span>
Answer:
D. Protons ; neutrons.
Explanation:
For a given element the number of protons is fixed, but the number of neutrons differ because the element usually consist of a number of isotopes.
For example Carbon has isotopes which contain 12, 13 and 14 neutrons.
So that is why you average the number of neutrons to find the approximate atomic mass..
1. Nucleus, neutrons
2. Tiny
3. Electrons, shells
4. Protons
5. Configuration
6. Electrons
7. Protons
