Answer:
For pure water, the values of [H3O+] and [OH-] are equal and thus their values are both 1.0 x 10-7. If there is an equal amount of acid and base present in any solution, the solution is called "neutral" and the pH of the solution is 7. ... The sum of the pH and pOH must always equal 14.
Explanation:
Answer:
Explanation:
The changes in properties from metals to non-metals on a periodic table can be measured and determined by the metallicity or electropositivity of elements.
Metallicity is a measure of the tendency of atoms of an element to lose electrons.
a.
Down a periodic group, metallicity increases.
b.
Across a period from left to right electropositivity or metallicity decreases.
Metals are found in the left part of periodic table and the most reactive metal sits in the lower left corner. Non-metals are towards the right side of the table.
Answer:
Triple the Mn half reaction and double the Fe half reaction
Explanation:
Because...we have to balance the number of electrons(e)...which will be eliminated from the equations and they will be combined
Answer:
41.03 %
Explanation:
Given that,
The actual length of a strip of aluminum is 2.12 m
Observed length of a strip of aluminum is 1.25 m
We need to find the student's percent error. The percentage error on any value is given by :
Putting all values, we get :
So, the percent error of the student is 41.03 %.