Which term names two different forms of a single gene

When a bond is formed, energy is _ the atoms

Radium-223 has a half-life of 11.0 days. How much of a 60.0 mg sample of Ra-223 is still active after 44.0 days?

A 2.44 mass % aqueous solution of nitric acid (HNO3) has a density of 1.05 g/mL. Calculate the molality of the solution.

Why is it important to have a controlled experiment

During an investigation a scientist heated 2.76 g of silver carbonate till it decomposed to leave a silver residue. The total mass of the silver residue formed was 2.16 g.

A metal block has a mass of 122 grams and measures 2cm x 2cm x 4cm. What is the density of the block?

What are valency and radicals

Tell me some bad effects of Ethanol

How many moles of carbon dioxide are released daily by a humming birds respiration?

If a scientist creates a new rock-like substance in a laboratory, why wouldn't this type of material be classified as a true mineral?