Helium has the smallest atomic radius® Α⇒Ω
Answer:
5.67x10²³ ions
Explanation:
By looking at the molecular formula, we can tell that there are three Sr²⁺ ions per Sr₃(PO₄)₂ molecule.
We <u>convert Sr₃(PO₄)₂ moles into Sr₃(PO₄)₂ molecules</u> by using<em> Avogadro's number</em>:
- 0.314 moles * 6.023x10²³ = 1.89x10²³ molecules
Finally we <u>multiply that number by 3</u> in order to <em>convert Sr₃(PO₄)₂ molecules to Sr²⁺ ions</em>:
- 1.89x10²³ * 3 = 5.67x10²³ ions.
Answer:
1 Second
Explanation:
10 meters per second for 10 meters, you just divide.
Answer:
Potassium iodide increases the decomposition rate of hydrogen peroxide.
Explanation:
Potassium iodide increases the decomposition rate of hydrogen peroxide because potassium iodide act as a catalyst. A catalyst speed up the process of chemical reaction without reacting with the molecules present in reaction. If the potassium iodide is not present as a catalyst for the decomposition of hydrogen peroxide then the decomposition of hydrogen peroxide takes too much time because the catalyst is absent that speed up the reaction.
Answer:
Increases
Explanation:
Both acids and bases can measured
using the pH or pOH scale. Both
scales provide a measure of either
the H+ concentration or the OHconcentration.
Notice that each scale shows were
acids and bases both are located.
• When acids are measured, the
pH is less than 7, but the pOH
is greater than 7.
• When bases are measured,
the pH is greater than 7, but
the pOH is less than 7.
Both scales are dependent on what
ion you are measuring
