Radioactive isotopes have been used commercially in:

smoke detectors

older watches with luminescent dials

sterilization of food

all of these applications

On a spring break road trip, 3 friends drive 480 miles to the beach. If their average speed is 60 miles per hour, how many hours did it take them to reach their destination?

When a sample of gas is cooled in a sealed, rigid container, the pressure the gas exerts on the walls of the container will decrease because the gas particles hit the walls of the container (1) less often and with less force (2) less often and with

Describe what would happen to the volume of a balloon if it were submerged in hot water

Which element do you expect to be most like magnesium? Why? a.) potassium b.) silver c.) bromine d.) calcium e.) lead

Occurs when heat is transferred into an object through motion or movement; an example would be boiling water. A. Conduction c. Convection b. Radiation d. Heat

The atomic mass of fluorine in 19.0 amu, so the molar mass is?

A rod shaped organism with no nucleus commonly found in Garbage will most likely belong to which kingdom

Alka-Seltzer is a solid mixture of two substances, sodium bicarbonate (NaHCO3) and citric acid (H3C6H5O7). The substances react to form water, carbon dioxide (CO2), and Na3C6H5O7.

Four properties of water are listed. 1. It is colorless and odorless in its pure form. 2. It reacts with metals to form metal hydroxide and hydrogen gas. 3. When heated to 100 °C, water evaporates. 4. It decomposes to form hydrogen and oxygen.

Water is A. Acidic B. Basic C. Neutral