Calculate the mass percent of .485 g of hydrogen, which reacts with oxygen to form 2.32 g of H2O

Which of the following statements is true? question 4 options: nuclear decay rates vary with the conditions of the reaction, but chemical reaction rates do not. chemical reaction rates vary with the conditions of the reaction, but nuclear decay rates do not. neither chemical reaction rates nor nuclear decay rates vary with the conditions of the reaction. both chemical reaction rates and nuclear decay rates vary with the conditions of the reaction.

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as