A fruit processing plant generates wastewater that exerts a significant amount of BOD. The composition of the contaminants in the wastewater is C5H9O3at a mass concentration of 200 mg L-1. (a)Balance the equation below that describes how the contaminants would be oxidized by microorganisms:C5H9O3+ ___ O2à___ CO2+ H2O(b)Calculate the theoretical BOD of the wastewater. Express your answer in mg of oxygen per liter.

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

If 3.00 g of titanium metal is reacted with 6.00 g of chlorine gas, cl2, to form 7.7 g of titanium (iv) chloride in a combination reaction, what is the percent yield of the product?

What is the independent variable in this investigation? mass volume sample number substance density