Acids<span> and </span>bases<span> are two types of corrosive substances. Any substance with a pH value </span>between<span> 0 up to 7 is considered acidic, whereas a pH value of 7 to 14 is a </span>base<span>. </span>Acids<span> are ionic compounds that break apart in water to form a hydrogen ion (H+).
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Answer:Given data from the lab collated as 291.15k for Temperature, 0.061L for volume and 1atm pressure.
Initial hydrogen peroxide solution is 5ml with a weigh % concentration 6.6%
n=0.0025moles of oxygen AND 0.0097moles of H2O2 were present
Explanation:
2H2O2(aq)-----2H2O(I)+2O2(g)
Recall the idea gas equation
PV=nRT
n=PV/RT---(1) solving equation (1) using the data in the answer section above.
n=0.0025moles of oxygen is produced.
Recall that for every 100ml of solution you get 6.6g of hydrogen peroxide.
Your 5ml will thus contain
5ml*6.6g H2O2/100ml=0.33g
no of moles if H2O2=0.33/34.015=0.0097moles
I believe it's B: series circuit
good luck
Answer:
Only to elements are gases at room temperature and standard pressure.
Fluorine and chlorine.
Explanation:
The group 17 is called halogen.
There are five elements in halogen group.
All halogens required one electrons to complete the octet and to get the noble gas electronic configuration.
All halogen elements have seven valance electrons.
Halogen elements:
Fluorine, chlorine, Bromine, iodine and astatine
Fluorine is gas at room temperature which s 25°C and standard pressure which is 1 atm.
It is present in the from of F₂.
Chlorine is also gas at room temperature and standard pressure.
It is present in the from of Cl₂.
The bromine is liquid under these condition.
Iodine and astatine are solids.
As we move down the group their melting and boiling points increases.
Answer:
what kind of math is this
Explanation:
