Her adverage speed would be 160 meters per second!
If you feel the answer is incorrect please comment and I will revise! Have a good day!
Proof:
2 minutes=250 meters
6 minutes=1,250 meters
7 minutes=1,600 meters
10 minutes= 1,600 meters
Answer:
Explanation:
The algebraic sum of all the oxidation numbers of all atoms in a neutral compound is zero.
In order to know the formula of the negative Sulfur ion in pyrite, we must determine its oxidation state.
Let us make the make the oxidation number of sulfur = x
Therefore, FeS₂:
+2 +2x = 0
+2 = -2x
x = -1
The formula of the negative ion is S⁻
Yes, i believe that it can have a physical change but it is most likely chemical.
Explanation:
The pH of a strong acid when titrated with a strong base is equal to 7 because of the formation of a neutral salt which corresponds to pH = 7.
But on the other hand,
The titration of the weak acid and strong base, the reaction taking place is:
HC₂H₃O₂ + OH⁻ ⇒ H₂O + C₂H₃O₂⁻
At the equivalence point, the pH is greater than 7 because of the conjugate base formed in the above reaction which gives OH⁻ in the solution as:
C₂H₃O₂⁻ + H₂O ⇒ HC₂H₃O₂ + OH⁻
<u>The hydroxide ions produced in the above reaction results in the pH above 7 (basic).</u>
Answer:
2 NH3(g) + 2 H2O => 2NO2(g) + 5 H2(g)
Explanation: The coefficients are:
2:2:2:5
