Polyesters and polyamides are types of synthetic polymer. Which statements are correct? 1. They are made by addition polymerisation. 2. They are made by condensation polymerisation. 3. The monomers from which they are made are unsaturated hydrocarbons. 4. The monomers from which they are made contain reactive functional groups at their ends. A. 1 and 3 B.1 and 4 0.2 and 3 D.2 and 4

Assume that the variables x and y are inversely related. if k = 18, what is the value of y for each of the following points? be sure and record your data to be used in the following problem.

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When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign