A metal is electrolyzed from aqueous solution by using an electrical current of 1.23 a for 2.5 hours and 3.37 grams of metal is deposited. in a separate experiment the number of electrons used for the reduction of the metal is 2. what is the metal

3. When two atoms of 2H (deuterium) are fused to form one atom of 4He (helium), the total energy evolved is 3.83 * 10-12 joules. What is the total change in mass (in kilograms) for this reaction? 4. The mass of a proton is 1.

Why doesn't oil dissolve in water? oil molecules are non-polar. oil molecules carry a net negative charge. oil molecules carry a net positive charge?

You have a round pie plate filled with water. you carefully release a drop of red food coloring in the center of the plate. what happens to the red dye molecules right after the drop is placed?

You are given a glass of common salt solution suggest a method to separate common salt and water. note : assume that all the common salt has dissolved in water

What is emission spectrum.

A compound is found to contain 47 percent potassium 14.5 percent carbon and 38.5 percent oxygen by the way the molar mass of the compound is 166.2 g what is the molecular formula

How do you go from moles to atoms

Write conversion factors (as ratios) for the number of: (a) kilometers in 1 mile (b) liters in 1 cubic foot (c) grams in 1 ounce

Why sodium chloride is a neutral compound even though it is made up of ions that have positive and negative charges?

A student monitored the reaction rate of a 0.600M sucrose solution, at 25 oC, and determined that the reaction is first order with respect to sucrose. If at 25.0 oC it takes 3.33-hours for the concentration of the 0.600M solution to drop to 0.300M.