Protists are NOT prokaryotes so the answer would be B) False.
If the final concentration of NOBr = 0.250M
Change in concentration of NOBr = +0.250 M
Change in concentration of NO = -0.250 M
Change is concentration of Br2 = -0.125 M ( since number of moles of Br2 is 0.5 times the number of mole of NOBr)
Final concentration of NO = 0.400-0.250 = 0.150 M
Final concentration of Br2 = 0.245 - 0.125 M = 0.0120 M
Therefore;
Kc = conc (NOBr)^2/ ((conc NO)^2 ×(conc (Br2)
= (0.250²)/(0.150²×0.120)
= 23.148
= 23.1 mol/dm³
<u><em>Answer:</em></u>
It was a positive ion.
<u><em>Explanation</em></u>
In CaBr, ionic bond is present. When one of the atom loses electrons and gets positive charges and other atom gains electrons and become negative. As a result of positive and nagative charges , a ionic bond formed.
As in this case, Ca loses electrons and become positive ion while on the other hand bromide gets the electrons and become negative ion.
<em>Note:</em>
Electropositive atoms always loose electrons Like Ca while electronegative atoms always gain elelctrons like Br.
Answer:
Both Density and Volume increase
Explanation:
Explanation:
Relation between temperature and activation energy according to Arrhenius equation is as follows.
k = 
where, k = rate constant
A = pre-exponential factor
= activation energy
R = gas constant
T = temperature in kelvin
Also,
= 
= (244 + 273) K = 517.15 K
= 
= (597.15 + 273) K = 597.15 K
= 6.7 
, 
= ?
R = 8.314 J/mol K
= 71.0 kJ/mol = 71000 J/mol
Putting the given values into the above formula as follows.
= 2.2123
= 9.1364
Thus, we can conclude that rate constant of this reaction is 
.
