When designing new technology, the process consists of four main steps: Identify a problem or need Design a solution or a product Implement the chosen design Evaluate the solution or the product What should be done while identifying a potential problem? A. evaluate the effectiveness of new technology B. design the appearance of a new technology device C. research information on various problems or needs D. build a new piece of technology

Calculate the number of moles of ethane in 100 grams

Why is carbon ideal for making different compounds?

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.