A 100.0g sample of eighteen karat gold contains 75g of gold and 25.0g of other metals. What is the percent of gold in the sample

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

This question is about electrolysis. metal spoons can be coated with silver. this is called electroplating. suggest one reason why spoons are electroplated?

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.