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What is the coefficient of the permanganate ion when the following equation is balanced?
Mn04- + Br- → Mn2+ + Br2 (acidic solution)
a. 1b. 3c. 2d. 5e. 4
A 1.80-L flask is filled with propane gas (C3H8), at 1.00 atm and -19.4°C. What is the mass of the propane in the flask.
The formula weight of MnSO4 monohydrate is 168.97 g/mol. MUST SHOW WORK!! A) hydrated B) solvated C) saturated D) unsaturated E) supersaturated
Calculate: a. kg of pressed beans from stage 1 b. kg of extracted meal from stage 2 c. kg of final meal & wt% protein of it ans: 8723 kg, 8241 kg, & 7816 kg and 44.8 wt% protein.
a cylindrical glass tube 13.0 cm in length is filled with mercury. The mass of mercury needed to fill the tube is found to be 107.5g. Calculate the inner diameter of the tube in centimeters.
It takes 49.0 to raise the temperature of an 11.8 piece of unknown metal from 13.0 to 24.5. What is the specific heat for the metal?
What is the rate constant for the reaction at 85°C?
Please explain why [Fe(CN)6]3- shows a charge-transfer absorption in the visible region of the spectrum and another in the ultraviolet region, while [Fe(CN)6]4- shows only a charge-transfer
if the initial concentration of the reactant in a first-order reaction A-> products is 0.64 mol/L and the half-life is 30.0 s. what is the concentration after 60 s.
A balloon has a volume of 3.00 liters and a temperature of 56.0 celcius.if the volume increases to 7.00 liters, what is the new temperature in celcius?
Write symbol for bromine.What is the atomic number of it in periodic table?How many protons and electrons are there in the atom of bromine?Give the highhest possible and minimal oxidation number for bromine.Determine its molar mass.
A system receives 93 J of electrical work, performs 227 J of pressure-volume work and releases 155J of heat.What is the change in Internal energy of the system?
The volume of a drop of rain was found to be 0.448 ml at N.T.P. How many molecules of water and number of atoms of hydrogen are present in this drop.
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