Answer: A. Simple structure, molecule, single bonds, two elements
Question:
What title belongs in the circle labeled X in the diagram below?
Answer:
C. Solar System
The solar system carries all the planet and moons and meteors and all that stuff that the solar system has.
It has 5 atoms and the amount of protons and electrons it has.
Answer:
NaHCO3 + HCl --> NaCl + CO2 + H2O
Explanation:
NaHCO3 which is an acidic salt because of the replaceable H+ (Bronste lowry acid), by definition acid dissociates in water to release a proton.
NaHCO3 dissociates in water to give Na+, H3O+ and HCO3-
Stomach acid which is HCl also dissociates in water to give H3O+ and Cl-
The H3O+ and HCO3- combines briefly to form a weak carbonic acid almost immediately, which then further dissociates to form H2O and CO2. CO2 is burped out from the mouth.
Na+ and Cl- combines to form NaCl in water which is a table salt solution.
Below is an attachment containing the step by step reactions