Answer:
The two main variables in an experiment are the independent and dependent variable. An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment.
i believe its true bc ik for sure air is a homogenous mixture
False, kinetic energy depends on an objects mass and speed
Answer:
a.cations form when an atom gains electrons
