What criteria are used to distinguish between a chemical and physical change?

P4 + 3 02 → 2 P2O3 What type of reaction?

What is the term for the process that occurs when an atom of an element spontaneously breaks apart to create an atom of a different element and the release of energy as radiation or particles? a. atomic deterioration b. elemental deployment c.

A chemist plans to use 435.0 grams of ammonium nitrate ion a reaction. How many moles of the compound is this?

a classmate examines a substance that conducts electricity and is shiny but has no color. He says that is must be silver. What is his error?

Set 2 - Ec 11. Which planet has the least elliptical orbit? (1) Jupiter (2) Mars (3) Venus (4) Saturn 11

The electron configuration 1s22s22p63s23p6 represents which noble gas?

What feature distinguishes a neutral atom from an ion

What is urine made of?

How many grams of F - must be added to a cylindrical water reservoir having a diameter of 2.02 * 102 m and a depth of 87.32 m?

How do you know when it's the same element?