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KMnO4-(aq) +HCl(aq)=Mn2+ (aq)+ Cl2(g) + K+ (aq) balance equation with half life method and what is the reducing agents?
What is the wavelength of a light ray if its frequency is 4.64 x 1014 s-1? answer in units of nanometers (nm).
A gas mixture being used to simulate the atmosphere of another planet consists of 324 mg of methane, 217 mg of argon, and 228 mg of nitrogen.
a gas cylinder witha volume of 3.00 dm^3 contains 8.00 moles of oxygen gas at a temperature of 50.0k. what is the pressure inside the cylinder.
A solution of iodine was standardized with ascorbic acid. A 0.1150 g sample of ascorbic acid required 28.37 mL of I2 to reach a starch end point. Calculate the molarity of the iodine solution.
If 156 mL of wet H2 is collected over water at 24C and a barometric pressure of 736 torr, how many grams of Zn have been consumed?
A particular snack mix contains 1.30 g of salt per 100 g of the mix. How much mass of the mix can be consumed and still be within the FDA limit of 2.40 g of salt.
Which of the following isotopes is more likely to decay via positron emission rather than electron emission.
Strong base is dissolved in 615 mL of 0.400 M weak acid (Ka = 4.50 × 10-5) to make a buffer with a pH of 3.95. Assume that the volume remains constant when the base is added.
calculate the final molarity of the solution that results when 125 ml of .200 M HCL is diluted to 1.00L
Determine the number of CH2CH2 monomeric units, n, in one molecule of polyethylene with a molar mass of 40,000 g.
Determine the work done by the evolution of H 2 in the subsequent reaction on the surrounding atmosphere with1atm pressure and at 25 degree celsius temperature and express your answer in Joule
One method of estimating the temperature of the center of the sun is based on the assumption that the center consists of gases that have an average molar mass of 2.00 g/mol.
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