Answer:
I think its the last one
Explanation:
its supposed to be H 2 O 2.
<span>The superscripts in an electron configuration represents the number of electrons and protons in an element. </span>
<span>An exothermic reaction is one in which heat is released from the reagents into the ambient environment. Perhaps somewhat counterintuitively, condensation is in fact an example of such a reaction. During the process of the gas-to-liquid phase change, water goes from a higher-energy to lower-energy state of matter, and, as such, releases heat into the environment.</span>
Answer:
Here,
0.01040 m as an integer= 1.04 × 10-2
