While looking out the window, you see lightening flash and then 3 seconds later, you hear the thunder. How far was the lightening from you?

A. 3,300 ft

B. 3 miles

C. 300 ft

Scientists put a few drops of dilute hydrochloric acid on a lab table. For safety purposes, the scientist because some baking soda on to the spill. Which observation would provide the best evidence that chemical reaction occurred? F.

The Ksp of AgCl is 1.8 * 10-10. How do you know that mixing equal amounts of 0.04M solution of AgNO3 and 0.002M solution of NaCl will lead to the formation of a precipitate? a. [Ag+]*[Cl-] = Ksp AgCl b. [Ag+]*[Cl-] < Ksp AgCl c.

Which is not one of the eight most common elements in Earth's continental crust? oxygen aluminum silicon carbon

You and a friend move a grand piano across the living room, exerting 25 newtons of force and performing 175 joules of work. It takes you 14 seconds. How far did you move the piano? How much power did you generate, in watts (joules/sec) ?

How are carbohydrates and lipids alike?

Which quantity is constant when working with boyles, charles, and gay lussacs law?

How many gallons of water are needed to print a day's supply of newsprint for the United States? a. 1,000 gallons b. 15,000,000 gallons c. 350 gallons d. 300,000,000 gallons

Do traditional spotlight lamps burn

What is the binding energy of one mole of if the mass defect is 1.908 g/mol?

Q. A Substances that form hydrogen ions when released in water are called ... Choose one high acids bases saturated suspension salt solution hydrogen ions