Errors in experimental technique can result in the percent recovery of copper being too low or too high. give at least one specific example of each type of error in technique, and explain what could be done to ensure that those errors do not occur in the recovery

Cucl2 + 2nano3 cu(no3)2 + 2nacl what is the percent yield of nacl if 31.0 g of cucl2 reacts with excess nano3 to produce 21.2 g of nacl? 49.7% 58.4% 63.6% 78.7%

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

How much carbon is stored in the atmosphere as co2