If I am reducing an amount of glycerin, how much could I reduce its additives, that is, if I had 30 grams of glycerin and 0.8 g additive 1 and 0.8 g additive 2, how much can I remove from additives if I am reducing the glycerin to 23 grams so that is evenly distributed?

a-c explained fully please thanks!

Which one of these is the correct answer ? Thank you

two cylinders are printed on a 3d printer, with a setting of 40% fill rate. This means that the solid parts of the cylinders at 40% plastic material. Given this, tell me how much plastic material is used to make each of these cylinders. I measured both cylinders in meters and these are the measurements below A) Cylinder 1- Height: 0.042m Radius 2(outer radius): 0.008m Radius 1(inner radius): 0.006m   B) Cylinder 2 Height: 0.022m Radius 2(outer radius): 0.008m Radius 1(inner radius): 0.006m

Can someone assist me please? Thanks.

Please written by hand

When answering  the following questions , ensure that you explain in terms of both the microscopic and macroscopic structure of the materials. A) polymer - explain the difference in structure between a thermoplastic and thermoset material and explain how the structure accounts for the key generic properties of those polymers. B) composite material - for a particular composite and a fibre reinforce composite , explain the difference in structure and whst structual features dictate the properties of the material.

5. Describe enthalpy of formation. Please select all answers that apply: a) Standard enthalpy of formation is the amount of change in enthalpy evolved during the formation of 1 mole of the substance from its constituent elements with all elements in their standard states. b) Standard enthalpy of formation is the energy associated with chemical bonds. c) Standard enthalpy of formation is the amount of change in enthalpy evolved during the formation of 100 moles of the substance from its constituent elements with all elements in their standard states. d) Standard enthalpy of formation is the amount of change in enthalpy evolved during the formation of 1 Kg of the substance from its constituent elements with all elements in their standard states. e) Standard enthalpy of formation is the energy associated with heat transfer.

The Graph below shows how the degree of polymerization and melting temperature are related for polyethylene (data from Flory and Vrij, 1963). Using this graph determine (approximately) the following; (a) temperature at which polyethylene with molecular weight 561 g/mol melts. (b) temperature at which polyethylene with molecular weight 2,805 g/mol melts. (c) Explain in one line why melting temperature increases as the degree of polymerization rises.

What is the cost of a carbon credit (weighted average price per ton) in 2021? $4.73 $4.23 $5.60 $6.20