Answer:
5.6
Explanation:
since HCl is a strong acid we know that it completely dissasociates into H+ and Cl-
We can just treat the HCl as the H+ concentration and take the -log
-log(2.5E-6) = 5.6
Answer:Increasing the temperature increases reaction rates because of the disproportionately large increase in the number of high energy collisions. It is only these collisions (possessing at least the activation energy for the reaction) which result in a reaction.
Explanation:
Answer:
Barometric pressure will be 
Explanation:
We know, 
where P is barometric pressure, h is height of liquid inside barometer,
is density of liquid and g is gravitational constant
If barometric pressure is x cm
for 805 mm Hg then-

So, 
Hence barometric pressure will be 
Bellow you may find the names and structure of the poliatomic ions.
Explanation:
sulfate SO₄²⁻
nitrate NO₃⁻
perphosphate PO₅²⁻
hypoiodite IO⁻
chlorite ClO₂⁻
phosphite PO₃³⁻
percarbonate H₃CO₆²⁻
bromate BrO₃⁻
hyposulfite SO₂²⁻
permanganate MnO₄⁻
carbonite CO₂²⁻
CO₃²⁻ carbonate
MnO₃⁻ manganate
SO₅²⁻ persulfate
BrO₂¹⁻ bromite
CO₄²⁻ percarbonate
PO₅³⁻ perphosphate
ClO¹⁻ hypochlorite
IO₂¹⁻ iodate
PO₄³⁻ phosphate
NO₂¹⁻ nitrite
SO₄²⁻ sulfate
Learn more about:
polyatomic ions
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6 protons would be Carbon, C