Answer:
7 protons
Isotopes are atoms that have the same number of protons but different numbers of neutrons in the nucleus. You know that nitrogen-14 has 7 protons in the nucleus because it is an isotope of nitrogen, which has an atomic number equal to 7 .
Answer:
storm runoff
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Answer:
Ba -> Ba2+ + 2e-
Explanation:
A neutral atom becomes an iron when that atom loses electrons. The number of electroms lost by that atom determines the ionic charge or charge of it's ion. In this case, a neutral Barium atom (Ba) will become a barium ion, which has a charge of +2, when it loses 2 electrons to a more electronegative atom in a reaction.
The equation is:
Ba -> Ba2+ + 2e-
2e- is the two electrons lost
Answer: The molarity of given solution is 8.26 M.
Explanation:
Given: No. of moles = 6.2 mol
Volume = 750 mL (1 mL = 0.001 L) = 0.75 L
Molarity is the number of moles of a substance present in a liter of solution.
Therefore, molarity of given solution is converted as follows.
Thus, we can conclude that the molarity of given solution is 8.26 M.
The pOH of a solution at 25. 0 °C that contains 2. 95 × 10^-12 M hydronium ions is 0.5.
pH is the concentration of the hydrogen ion released or gained by the species in the solution that depicts the acidity and basicity of the solution.
pOH is the concentration of the hydroxide ion in the solution and is dependent on the pH as an increase in pH decreases the pOH and vice versa.
Total H+ ions = 2.95 x 10⁻¹² M
pH is calculated as:
pH = -log[H+]
Substituting values in the equation:
log( 2.95 x 10⁻¹² M)= 13.5 pH
pOH is calculated as:
14 - pH = pOH
Substituting values in the equation above:
14 - 13.5 = 0.5 pOH
Therefore, pH is 13.5 and pOH is 0.5.
Learn more about pH and pOH here: brainly.com/question/2947041
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