A chemical reaction that has a positive g is best described as endergonic.
Sorry but i can not decide i think it is B or C
I believe the correct answer from the choices listed above is the third option. The <span>oxidation number of Nitrogen in HNO2 would be +3. It is calculated as follows:
1 + x + (-2)(2) = 0
x = +3
Hope this answers the question. Have a nice day.</span>
Answer:
The mass number (represented by the letter A) is defined as the total number of protons and neutrons in an atom. Consider the element helium. Its atomic number is 2, so it has two protons in its nucleus.
The atomic mass of a single atom is simply its total mass and is typically expressed in atomic mass units or amu. By definition, an atom of carbon with six neutrons, carbon-12, has an atomic mass of 12 amu.
Answer:
Explanation:
1. NaCl Sodium Chloride
2. KI Postassium Iodide
3. MgF2 Magnesium Flouride
4.MgO Magnesium Oxide
5. Na2O2