C protons and neutrons, electrons surround the nucleus of an atom in outer shells
Explanation:
-Salt is a white cubic crystals. ...
-It is odorless but has strong salty taste.
-Solubility in water is different at different temperatures.
-Hygroscopic(ability of a substance to attract and hold water molecules from the surroundings).
-Melting point of salt is 800.8 degree Celsius
Answer:
It is two elements, Hydrogen and Chlorine
Explanation:
Hydrochloric Acid is made with 1 hydrogen atom and 1 chlorine atom bonded with a single covalent bond
The order in increasing is:
genes, chromosomes, cells, tissue, organ, system, organism
The answers are a.) 0.03 mol KOH requires 0.03 mol HCl, b.) 2 mol NH3 requires 2 mol HCl and c.) 0.1 mol Ca(OH)2 requires 0.2 mol HCl.
Solution:
We need to write the balanced equations for each reactions to find out the stoichiometry for each reactants.
a.) HCl (aq) + KOH (aq) → KCl (aq) + H2O(ℓ)
From the balanced equations, we can see that 1 HCl reacts with 1 KOH, therefore if 0.03 mol KOH is reacted then 0.03 mol HCl must also be present.
b.) HCl(aq) + NH3(aq) ) → NH4Cl(aq)
If 2 moles of NH3 are reacted then 2 moles of HCl must also be present since 1 HCl reacts with 1 NH3 from the balanced reaction.
c.) 2HCl(aq) + Ca(OH)2(s) → CaCl2(aq) + 2H2O(ℓ)
We can see that 2 HCl react with 1 Ca(OH)2, hence if 0.1 mol of Ca(OH)2 is reacted then 0.2 mol HCl must also be present.
