Select the statement that best explains how inflatable packing materials and foam packaging peanuts rely on the properties of gases to keep objects
safe during shipping.
1Both types of packing materials flow in between the objects and provine thermal insulation.
2 Both types of packing materials can compress to lessen the force of an impact on the objects.
3Both type of packing materials are densely packed and can provide sturdy protection for the objects.
4Both types of packing materials can expand to fill the box and stabilize the objects.
Answers: 2
Chemistry, 22.06.2019 18:00, brisacruz013
Which statement best describes the he properties of iconic compounds ?
Answers: 1
Chemistry, 23.06.2019 01:30, sheldonwaid4278
Magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. trial 1: trial 2: data mass of empty crucible with lid trial 1: 26.688 trial 2: 26.681 mass of mg metal, crucible, and lid trial 1: 26.994 trial: 2 26.985 mass of mgo, crucible, and lid trial 1: 27.188 trial 2: 27.180
Answers: 1
Chemistry, 23.06.2019 06:40, 1991987
1.) which of the following is a molecule but not a compound? a. he b. f2 c. h2o d. ch4 2.) what is a physical combination of substances? a. a compound b. a molecule c. a mixture d. an element 3.) what is a chemical combination of substances? a. a compound b. an atom c. a mixture d. an element 4.) what is the relationship between the solute and solvent in a solution? a. they form a compound b. they form a mixture c. they form molecules d. they form chemical bonds 5.) the gases in air dissolve in water. what would be one way to reduce the amount of a gas dissolved in water? a. add more water b. reduce the air pressure c. increase the air pressure d. stir the water 6.) how would you determine the solubility of a substance? a. find how well it dissolved various substances. b. find the mass and the volume of the substance. c. find the temperature at which the substance evaporated. d. find how much i was able to dissolve in a solute. 7.) the periodic table organizes all of the kinds of a. molecules. b. compounds. c. atoms. d. ions. 8.)what distinguishes two substances combined to become a compound vs. two substances combined to become a mixture? a. whether they can be easily separated b. whether they chemically bond together c. whether they both are visible d. whether they are heterogeneous 9.) the principle components of air are: n2 78% o2 21% ar 0.95% co2 0.038% this is a solution of a. molecules and atoms. b. molecules. c. compounds and molecules. d. atoms.
Answers: 1
Select the statement that best explains how inflatable packing materials and foam packaging peanuts...
Mathematics, 13.04.2020 01:50
Mathematics, 13.04.2020 01:50
Mathematics, 13.04.2020 01:50
Mathematics, 13.04.2020 01:51
Mathematics, 13.04.2020 01:51