You are watching: What is the mass number of an ion with 104 electrons, 157 neutrons, and a +1 charge?
the forward and also reverse reactions happen at the same price so the the concentrations of reactants and also products stay the same
Chemical equilibrium occurs once the forward and reverse reactions balance out each other. This is a dynamic equilibrium since the reactions proceed to occur, however the concentrations carry out not change.
Hydrogen Bonds space weaker than covalent bonds since they carry out not involve share of electrons, and they space weaker 보다 ionic bonds because they indicate the attraction that partial (not full) opposite charges.
A buffer consists of undissociated acid (HA) and the ion make by dissociating the acid (A-). How does this system buffer a solution versus decreases in pH?
A- reacts through H+ to come to be HA(A- binds most of the included H+, therefore not lot H+ is left to lower the pH)
How does the way a buffer stabilizes pH during addition of mountain differ from the way the exact same buffer stabilizes pH during enhancement of base?
It"s the same reaction to run backward or forward(The buffer accepts H+ in one case; it offers off H+ in the other case)
Given what friend know about the person body, what perform you think accounts because that the high portion of oxygen (65.0%)?
The human being body is mostly made up of water (H2O), and also there is one oxygen atom in each molecule the water. Note that, although each water molecule additionally contains 2 hydrogen atoms, the atomic mass the hydrogen (about 1) is lot smaller than the atomic mass the oxygen (about 16). Due to the fact that of this, hydrogen contributes much less to person body mass than oxygen.
Chemistry: The central Science14th EditionBruce Edward Bursten, Catherine J. Murphy, H. Eugene Lemay, Matthew E. Stoltzfus, Patrick Woodward, Theodore Brown
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