How many atoms are there in 2.3 grams of H?

What is the formula for aluminum sulfate?

Is sulfur trioxide a homogeneous or heterogeneous mixture?

Calcium carbonate is most likely to dissolve in water with which characteristics? a. Low pressure and colder temperatures b. Low carbon dioxide and warmer temperatures c. Lots of carbon dioxide and warmer temperatures d.

A coin floats on the top of a glass of water. Explain why the coin is able to float on top of the water in this glass.

Nitrogen bases are molecules that contain nitrogen and other elements

Altering the pressure of a system can affect the rate of a chemical reaction. true false

What does ice cream melt on a hot day which type of thermal energy transfer does this melting represents

For which purpose do biochemists insert human genes into bacteria? to find a cure for the common cold to produce insulin for diabetics to kill resistant strains of bacteria to evolve certain species of bacteria

Cracks in rocks chemical or mechanical

A large boulder falls from an underwater ledge and crashes on the floor of the ocean. A pod of dolphins is 800 meters away. Determine how long it takes for the sound of the crash to reach the dolphins. A) 0.5 sec B) 0.3 sec C) 2.3 sec D) 1.9 sec