Consider 1:1 stoichiometric polymerization of 1,4-diaminobutane with sebacoyl chloride. (a) Write down a balanced chemical equation for the polymerization. (b) Name the polymer formed by this polymerization. (c) Using the Carothers equation, calculate the extent of reaction required to produce this polymer with a number-average molar mass M – n = 25.0 kg mol−1. You should neglect the effects of end groups on molar mass. (d) Explain briefly the consequences of including 1,1,4,4-tetraminobutane in the polymerization with an exact stoichiometric ratio of 2:1:4 of 1,4-diaminobutane to 1,1,4,4-tetraminobutane to sebacoyl chloride. 3.8 A polycondensation reaction takes place between 1.

Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give

What are the names of these two interactions with cattle and how do they differ from each other

What are the coefficients that will balance the skeleton equation below? n2 + h2 → nh3