Change units:
1 mile = 1609.34 m = 1609.34 * 10^6 micro m = 1.60934 * 10^9 m
1 hour = 3600 s = 3600 * 10^9 nano seconds = 3.6*10^12 nano sec
3 miles / hour = 3 * 1.60934 * 10^9 / (3.6*10^12) = 0.0013411 micro m/nano second = 1.3411*10^(-3) um / ns
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Answer:
O3 is stronger oxidizing agent than HO2-.
Cl2 is stronger oxidizing agent than I2.
Zn^2+ is stronger oxidizing agent than Co^2+.
Br2 is stronger oxidizing agent than BrO3-.
Explanation:
An oxidizing agent oxidizes other compound by undergoing reduction itself.
Gaining of electron or hydrogen is reduction.
1. O3 is stronger oxidizing agent than HO2-. Because O3 readily gets decomposed into O2 and nascent (O), which oxidizes other compound. whereas as HO2- sometimes gets reduced to H2O2 and sometimes gets oxidized to O2.
2. Cl2 is stronger oxidizing agent than I2, as Cl2 can easily gain electrons compared to I2 due to its small atomic size.
3. Zn^2+ is stronger oxidizing agent than Co^2+, because Zn^2+ readily gains electrons compared toCo^2+ to form stable Zn due to its small atomic size.
4. Br2 is stronger oxidizing agent than BrO3-, as Br2 can accept electrons due to readily available empty orbitals compared to BrO3-.
KCl: 74.5g/mol
Molarity = mol/Liters
Since you are given 0.750L and 1.50M, we can plug it into the molarity formula and solve for moles.
1.50M = x mol/0.750L
X = 1.125 moles of KCl needed
You asked for grams so let’s convert the moles of KCl to grams:
1.125 mol x (74.5g/mol) = 83.8g KCl
The molarity of a solution equals to the mole number of the solute/the volume of the solution. For NH4Br, we know that the mole mass is 98. So the molarity is (14/98) mol /0.15 L=0.95 mol/L.
A. An Interdependent system of plants, animals, and land
