A covalent bond between two atoms occurs when the atoms

A. lose or gain electrons and become ions.

B. share pairs of electrons.

C. transfer valence electrons completely from one atom to another.

D. have an electrical attraction between them.

A sample of co2 solid and co2 gas differ in their

All motion is caused by force? true or false

Atoms combine to form?

What is the balanced equation for the reaction of graphite (carbon) with oxygen to produce carbon monoxide?

What it the chemical equation for sugar with potassium nitrate?

Which civilization formed a confederation thay may have impacted the us government A. Powhatan B. Algonquian C. Iroquois D. Anasazi

Jasmine breathed against the window pane and noticed that her breath made a spot on it from the water vapor in her breath. Which stage of the water cycle does this show? A. precipitation B. evaporation C. condensation D. transpiration

Amber has developed a line of organic lotions and handmade soaps with unique, herb-based scents and a touch of bee balm. She plans to sell these products to the wealthy residents of a nearby resort town.

Two pure elements react to form a compound. One element is an alkali metal, X, and the other element is a halogen, Z. Which of the following is the most valid scientific claim that can be made about the compound? a. It has the formula XZ2 b.

Are protons positive and neutrons neutral