Answers: 1
Chemistry, 21.06.2019 22:20
Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?
Answers: 2
Chemistry, 22.06.2019 03:20
Which type of substance ionizes partially and gives off hydrogen ions when dissolved in water? a. strong acid b. strong base c. weak acid d. weak base
Answers: 1
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
Chemistry, 22.06.2019 14:30
Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize
Answers: 3
Why the atomic mass listed on the periodic table if 63.55?...
English, 10.12.2020 14:00
Mathematics, 10.12.2020 14:00
Health, 10.12.2020 14:00
English, 10.12.2020 14:00
Mathematics, 10.12.2020 14:00
History, 10.12.2020 14:00
Biology, 10.12.2020 14:00
Mathematics, 10.12.2020 14:00
Mathematics, 10.12.2020 14:00
History, 10.12.2020 14:00
Spanish, 10.12.2020 14:00
Chemistry, 10.12.2020 14:00
Biology, 10.12.2020 14:00
Mathematics, 10.12.2020 14:00
Mathematics, 10.12.2020 14:00
Geography, 10.12.2020 14:00
Mathematics, 10.12.2020 14:00
Geography, 10.12.2020 14:00