Write the chemical formula for:

sodium iodide and lead (iv) sulfate react to produce lead (iv) iodide and sodium sulfate

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.

Identify the electromagnets with poles that are reversed from the electromagnet shown above

Which activity is an innate behavior