Answer:
O.
Explanation:
- The element which is oxidized is the element that losses electrons and its oxidation state be more positive.
- The element which is reduced is the element that gain electrons and its oxidation state be more negative.
<em> O goes from 0 to -2, so, it is the element that is reduced.</em>
Atoms because electrons, neutrons and protons are in a atom
I believe that the answer is A i could be wrong though.
Answer: hydrogen
All acids have the hydrogen ion in common
Explanation:
According to Arrhenius theory, an acid is a substance which dissociate in water to produce hydrogen ions, H+;
For example: HCl --> H+ + Cl-
while a base is a substance which gives hydroxide ions, OH-, in water
For example: NaOH(s) --> Na+(aq) + OH-(aq)
Thus, all acids have the hydrogen ion in common
Answer:
Explanation:
(1) first part of solution: we know stress= Force/Area ; Force= 400lb and Area as given
(2) Second part of the solution its the standard formula for Hoop stress and the formula explains all the terms
(3) Third part of the solution we know Strain= (Change in length)/original length and also the strain are substituted in terms of strain and youngs modulus
Further explanation are given in the attach document.
