Match the object with its characteristic. Earth
?
Electromagnet
Venus
?
Permanent magnet
Refrigerator
magnet
?
Not magnetic

What is the maximum number of electrons that an atomic orbital can contain?

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Citric acid has a ph between 1 and 3.  it is considered to be aa. weak acidb. weak basec. strong based. strong acid