Sort the items based on whether they are simple machines or compound machines. sewing machine
pair of tongs
fishing rod and reel
seesaw
wheelbarrow
crane
Simple Machine
Compound Machine

Two things that biomedical has invented or innovated

How does a large body of water, such as the ocean, influence climate?

Idid a lab for chemistry where we put nails in a copper (ii) chloride solution. 1. why did the reaction stop? which reactant was used up? how do you know? 2. describe what was happening to the atoms of iron and copper during the reaction. what is this type of reaction called? 3. what would happen to the ratio of copper to iron if you had placed more nails in the beaker? if you had let the reaction go for less time? 4. what is the accepted ratio of copper atoms to iron atoms in this reaction? account for differences between your experimental value and the accepted value. write the balanced equation for the reaction.