Molecules move more slowly in solids because there they are all very compact
Answer: 1and 4
Explanation: iron is an element not an alloy. An ionic lattice is not bonded covalently.
Answer:
The gas and food are examples of energy.
Explanation:
The reason why is that food is energy as proteins and electrolytes. Gas is a energy of fossil fuels.
Factor or condition in an experiment that changes as a result of the independent variable. constant: factors or conditions in an experiment that are kept the same in ao Trials of the experiment. Control: a set up without the variable being tested.