Which of the following takes place during a double displacement reaction?
a complex substance breaks down into two or more simple substances
a single substance replaces another substance in a compound
two simple substances combine to form a new complex substance
parts of compounds switch places to form two new compounds

The two required components for a generator

What was the purpose of the apollo program? to put a man in orbit to launch a spy satellite to launch a space station to put man on the moon

Aparticle initially located at the origin has an acceleration of = 2.00ĵ m/s2 and an initial velocity of i = 8.00î m/s. find (a) the vector position of the particle at any time t (where t is measured in seconds), (b) the velocity of the particle at any time t, (c) the position of the particle at t = 7.00 s, and (d) the speed of the particle at t = 7.00