Cooper is the substance that can't be decomposed by a chemical chAnge. So 4)
I think thier speed may differ relatively due the movement of wind on each sides. itz very obvious that they change even the time of the day may count
Multiply the weight of the object by the distance it traveled to find the amount of work output. For the example: 10 lbs. x 1 foot = 10 foot-pounds. Find the work efficiency by dividing the work output by the work input and multiplying by 100.
You add solute until it can't dissolve anymore.
A. It is the reaction of an alkali metal with water.
B. Hydrogen , the test for hydrogen goes out with a squeaky pop.
C. Sodium + water —> sodium hydroxide + hydrogen
