One hundred million copper atoms are arranged in a line. which is a reasonable estimate for the length of this line?

If, as a pioneer, you wished to warm your room by taking an object heated on top of a pot-bellied stove to it, which of the following 15-pound objects, each heated to 100°C, would be the best choice?

A number of people became ill after eating oysters in a restaurant. Which of the following statements is a hypothesis about this occurrence? a. Everyone who ate oysters got sick. b. People got sick whether the oysters they ate were raw or cooked. c.

What type of bond is present in the Cl2 molecule?

Evidence related to which of the following earlier ideas led to the modern theory of plate tectonics? A continental drift and seafloor spreading B the Big Bang theory and natural selection C seafloor spreading and atomic theory D biological

A student purchases and weighs 5 pounds of carrots from a local grocery store. she notices that the grocery store constantly sprays its produce with distilled water.

What happens to the volume of most matter when it is heated?

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute? A. a weak electrolyte B. a nonelectrolyte C. a strong electrolyte D.

Which of the following measures the radiation given off by atoms per second?

What is the name of the outermost layer that forms a boundary around the outside of each cell

What does an ionic compound form?