Acid chlorides can be prepared from carboxylic acids by treatment with

a) pbr3
b) socl_2
c) kcl
d) both a and b
e) both b and c

How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.

Using the periodic table, complete the table to describe each atom. type in your answers

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?