Which polymer is a biopolymer? A) polyvinylchloride

B) polystyrene

C) polylactic acid

D) polyethylene

Unit conversions. (a) Convert 10,000 dynes to units of lbm ∙ ft/s^2 and lbf (b) Convert 0.2 atm to units of Kpa and lbf/in^2 (c) Convert 37 °C (physiological temperature) to units of °F and K. (d) Convert 50 in 2 ∙ lbm/s^2 units of joules and cal.

A solution of pH 3 was mixed with a solution of pH 9 what The final pH could be? 2 6 10 12

What materials are included in the hydrophere that are not in liquid form?

Calculate the energy gap between the excited and ground states for the sodium ion.

What does mechanical weathering do?

List all of the species that would have a net attraction to the positive charge: CH4, CH2Cl2, H3O+, H2O, C2H2Cl2, CO2, N3-,

if the units cancel and you are left with only the desired units for the problem, all the rations were set up correctly. True or false?

How many valence electrons are in c4h6br2?

Calculate the empirical formula from the given percent compositions. 82% nitrogen (N), 18% hydrogen (H)

Atoms of different isotopes of the same element differ in their total number of electrons neutrons protons valence electrons