White phosphorus burns spontaneously in chlorine to produce a mixture of two chlorides, phosphorus (ii) chloride and phosphorus(v) chloride and heat is evolved. Phosphorus (iii) chloride is a colorless fuming liquid:
P4 + 6Cl2 = 4PCl3
Phosphorus (v) chloride is an off-white solid
P4 +10Cl2 = 4PCl5
Answer: B a tick attaches itself to the skin of a dog
Parasitism is a kind of symbiotic relationship, between two species, in which only one species attains the benefit and the other species is harmed or affected.
A tick attaches itself to the skin of a dog is an example of parasitic relation. In this relationship, the tick sucks the blood of the dog acts as a parasite, and the dog usually obtain disease due to the effect of ticks.
The given question is incomplete. The complete question is :
What volume of 0.160 M solution of KOH must be added to 550.0 mL of the acidic solution to completely neutralize all of the 0.150 M hydrochloric acid?
Answer: Volume in liters to three significant figures is 0.516 L
Explanation:
To calculate the volume of acid, we use the equation given by neutralization reaction:
where,
are the n-factor, molarity and volume of acid which is 
are the n-factor, molarity and volume of base which is KOH
We are given:
Putting values in above equation, we get:
(1L=1000ml)
Thus volume in liters to three significant figures is 0.516 L
Explanation:
I think you can solve this question now ☺️
The answer is Atomic Number. I hope this helps. :)
