Which of the following is the most likely description of the product or products of a double-displacement reaction?

A) one new compound

B) two new compounds

C) oxygen and energy

D) one new compound and an element

Radioactive elements decay at a know rate known as half-life. Choose all of the correct statements concerning half-life. Carbon-14 has a half-life of 5,730 years. A 30 gram sample will be 10 grams after 5,730 years.

A sample of an unknown metal has a mass of 58.932g. it has been heated to 101.00 degrees C, then dropped quickly into 45.20 mL of pure water. the temperature of the water changed from 21 degrees C to 23.68 degrees C.

Which element has the greatest density at STP? (1) scandium (3) silicon (2) selenium (4) sodium

What natural method of separating mixtures happens in reservoirs over a long period of time?

The process of forming two DNA molecules from one is called ...

Describe and give an example of parasitism.

Why is a dilute solution of oleic acid used instead of pure oleic acid?

The vapor pressure of benzene (C6H6) is 73.0 mm Hg at 25 °C. What is the vapor pressure of a solution consisting of 179 g of benzene and 0.217 mol of a nonvolatile nonelectrolyte?

Aldo drove 420 miles using 18 gallons of gas. at this rate, how many gallons of gas would he need to drive 357 miles

How many grams of As2S3 are in 3.25 moles?