Author Question: An insoluble solid that is formed when two liquids (usually aqueous solutions) are mixed is called ... (Read 53 times)

kaid0807 · **on:** Jul 28, 2018

An insoluble solid that is formed when two liquids (usually aqueous solutions) are mixed is called
a) an acid.
b) a precipitate.
c) a redox.
d) an enzyme.

Question 2

A 4.0-kg mass, initially at rest on a horizontal frictionless surface, is struck by a 2.0-kg mass moving along the x axis with a speed of 8.0 m/s. After the collision, the 2.0-kg mass has a speed of 4.0 m/s at an angle of 37 from the positive x axis. What is the speed of the 4.0-kg mass after the collision?
a. 2.0 m/s
b. 2.7 m/s
c. 4.9 m/s
d. 2.4 m/s
e. 3.6 m/s