Chemistry, 30.06.2019 03:00 dlatricewilcoxp0tsdw
Hurry! tysm! branliest! which statements accurately describe short-term environmental changes? check all that apply. (multiple answers! ) plz be right short-term environmental changes cause changes in genetic makeup. short-term environmental changes do not happen suddenly with little warning. short-term environmental changes can occur in minutes to hundreds of years. short-term environmental changes do not affect organisms within an ecosystem. short-term environmental changes immediately affect organisms in the environment.
Answers: 2
Chemistry, 21.06.2019 22:30
Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.
Answers: 2
Chemistry, 22.06.2019 13:00
These questions are based on the attached photo. the experiment is about burning magnesium metal with oxygen. 1. write the balanced chemical equation for the reaction you are performing. 2. calculate the mass of magnesium metal used in each trial. o trial 1: o trial 2: 3. calculate the actual yield of magnesium oxide for each trial. o trial 1: o trial 2: 4. magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. o trial 1: o trial 2: 5. determine the percent yield of mgo for your experiment for each trial. o trial 1: o trial 2: 6. determine the average percent yield of mgo for the two trials. your company currently uses a process with a similar cost of materials that has an average percent yield of 91 percent. if the average percent yield of this process is higher than that, this could save the company money. what is your recommendation to the company? support your recommendation using your data, calculations, and understanding of stoichiometry gathered from this lab.
Answers: 1
Hurry! tysm! branliest! which statements accurately describe short-term environmental changes? c...
Mathematics, 05.07.2020 01:01
Mathematics, 05.07.2020 01:01
Mathematics, 05.07.2020 01:01