the specific heat capacity is the energy needed to raise the temperature of 1kg of that substance by 1 degree
Answer:
La configuración de estado fundamental del oro es [Xe]5d106s1 La diferencia de nivel de energía entre el 6s y el 5d es pequeña. Esto hace posible que uno de los dos electrones 6s esté en los orbitales 5d.
Explanation:
Answer:
Four moles of electrons
Explanation:
The reactions in a breathalyzer are redox reactions. Fuel cell breathalyzers consists of fuel cells with platinum electrodes. The current produced depends on the amount of alcohol in the breath. Detection of alcohol involves the oxidation of ethanol to ethanoic acid. The two half cells set in the process are;
Anode;
C2H5OH(aq) + 4OH^-(aq) ----------> CH3COOOH(aq) + 3H2O(l) + 4e
Cathode;
O2(g) + 2H2O(l) +4e--------> 4OH^-(aq)
Hence four electrons are transferred in the process.
Answer:
the answer is c
Explanation:
a chemical change mean it changes it for ever and a physical change mean it can be changed back and evaporation means it turns solid water in to gas hope this helps
Answer : The mass of Allura Red present in an 10 fluid ounce glass of the beverage is, 7.634 mg.
Explanation : Given,
Volume of solution = 10 fl oz = 295.735 mL
Molar mass of Allura Red = 496.42 g/mole
Concentration of Allura Red (Molarity) = 0.000052 M
Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.
Formula used :
Now put all the given values in this formula, we get:
Therefore, the mass of Allura Red present in an 10 fluid ounce glass of the beverage is, 7.634 mg.
