Answer: the compound used in disinfecting water is called Bleaching powder. It's chemical formula is CaOCl2 ( calcium oxychloride).
Explanation:
Water is a universal solvent. It is polar in nature and dissolves most inorganic solutes and some polar organic solutes to form aqueous solutions. Rain, springs, well, rivers, lakes and sea are natural sources of water.
Most natural water contains dissolved mineral salts, suspended impurities and germs. Therefore to make it safe for domestic and industrial use, water from natural resources undergoes in water treatment tanks:
--> coagulation,
--> sedimentation,
--> filtration and
--> disinfection.
Taking a quick glance at the whole process z water is first collected in large tanks and filtered to remove large particles. Chemical like CA(OH)2 is added to coagulate the fine particles. The coagulated particles are removed by using filter beds. Then the Bleaching powder (calcium oxychloride) is added to kill the bacteria ( disinfection). Then water is ready for use.
<span>Step 1)
write out all aqueous compounds as ions
2H+ (aq) + 2Br- (aq) + Ba2+ (aq) + 2OH- (aq) --> 2H2O (l) + Ba2+ (aq) + 2Br- (aq)
Step 2)
Cross out the spectator ions (ions that appear on both sides of the reaction)
2H+ (aq) + 2OH- (aq) --> 2H2O (l)
what you have left is the net ionic equation.
I hope this helped.</span>
Answer:
Higher
Explanation:
The answer is higher because Specific gravity is the density of a substance divided by the density of water. Specific gravity is almost always very close to the same value as the density is, meaning the higher, or more dense, a substance is, the higher the specific gravity is.
Answer:
Option 10. 1
Explanation:
The unbalanced equation is:
Fe₂P(s) + S(s) → P₄S₁₀(s) + FeS(s)
In order to balance P, we can add 4 to the Fe₂P.
The addition made that we get 8 Fe now, in the reactant side, so we add 8 to FeS in product side.
We count the sulfur, 10 from the P₄S₁₀ + 8 from the FeS = 18
We add 18 to the S in the reactant side. Balanced equation is:
4Fe₂P(s) + 18 S(s) → P₄S₁₀(s) + 8 FeS(s)
Answer:
The final temperature of the given ideal diatomic gas: <u>T₂ = 753.6 K</u>
Explanation:
Given: Atmospheric pressure: P = 1.0 atm
Initial Volume: V₁ , Final Volume: V₂ = V₁ (1/10)
⇒ V₁ / V₂ = 10
Initial Temperature: T₁ = 300 K, Final temperature: T₂ = ? K
For a diatomic ideal gas: γ = 7/5
For an adiabatic process:
<em><u>Therefore, the final temperature of the given ideal diatomic gas</u></em><em>:</em> T₂ = 753.6 K