Answer:
What is the investigation?
Explanation:
Answer:
C.) A new compound is formed - salt
Explanation:
Na is a metal
Cl is a nonmetal
When they are combined, they form ionic bonds as they seek to fill their octets. Salts are ionic compounds.
Explanation:
Atom are electrically neutral because in an atom the number of positively charged protons is exactly equal to the number of negatively charged electrons....

Catalysts are chemicals that speed up reactions without changing themselves at the conclusion of the process.
By reducing the reaction's activation energy, they accelerate the pace of the reaction. By offering a surface or an orientation, catalysts reduce the activation energy of a process. supplying a different mechanism (a set of procedures the reaction must follow) with lower activation energy. As a result, catalysts facilitate the formation of chemical bonds between atoms to create novel combinations and new compounds.
Learn more about catalysts here:
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The concentration of volume of solution can be expressed in many ways for example: mass percent, volume percent, mass-by-volume percent, etc.
The formula for mass-by-volume percent is:
mass-by-volume percent = 
2% erythromycin solution means 2 g of erythromycin in 100 mL.
Consider, for 15 g the volume be X mL.
So,



Hence, the volume is
.