How should you test a hypothesis?
a. by writing a mathematical equation
b. by making a single observation
c. by performing a controlled experiment
d. by answering a series of questions

Match each object to its description: a. coma of a comet b. comet tail c. oort cloud haze surrounding a nucleus created by solar wind. hypothetical sphere around the solar system

From the options provided for each element below, choose the properties that it may have based on its location in the periodic table fluorine (f): highly reactive nonmetal shiny a conductor

What is the common name for the compound shown here? enter the common name of the compound shown?