which elements can form basic compounds? check all that apply.sulfur

rubidium

arsenic

selenium

silicon

xenon

antimon

An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

What is the magnitude of the resultant vector round your answer to the nearest tenth

Explain what happens at the saturation point when adding salt to water at room temperature.