subject
Chemistry, 03.03.2021 01:10 geekymuin

Al soldar un tanque de gasolina con Acetileno, se necesita combinarlo con otro gas que no sea reactivo a temperatura ambiente, para evitar que la mezcla Acetileno – gasolina explote ¿Qué tipo de gas debe usarse?

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 05:00
1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false
Answers: 3
question
Chemistry, 22.06.2019 05:30
A3.37-mg sample of protein was chemically digested to convert its nitrogen into ammonia and then diluted to 100.0 ml. then 10.0 ml of this solution was placed in a 50-ml volumetric flask and treated with 5 ml of phenol solution plus 2 ml of sodium hypochlorite solution. the sample was diluted to 50.0 ml, and the absorbance at 625 nm was measured in a 1.00-cm cuvette and found to be 0.486. for reference, a standard solution was prepared from 10.0 mg of nh4cl (molar mass = 53.49 grams/mole) dissolved in 1.00 l of water. then 10.0 ml of this standard was placed in a 50-ml volumetric flask, treated in the same manner as the unknown, and the absorbance found to be 0.323. finally, a reagent blank was prepared using distilled water in place of unknown, it was treated in the same manner as the unknown, and the absorbance found to be 0.076. calculate the weight percent of nitrogen in the protein.
Answers: 1
question
Chemistry, 22.06.2019 11:40
Which type of precipitation would most likely form when the surface air temperature is slightly below freezing and the air temperature increases as you move upward away from the ground?
Answers: 2
question
Chemistry, 22.06.2019 23:30
Match each statement with the state of matter it describes
Answers: 3
You know the right answer?
Al soldar un tanque de gasolina con Acetileno, se necesita combinarlo con otro gas que no sea reacti...
Questions
question
Social Studies, 18.12.2020 19:30
question
Engineering, 18.12.2020 19:30
question
Mathematics, 18.12.2020 19:30
Questions on the website: 13722361