How many mg of calcium are present in a 500-mg tablet of calcium carbonate? ?

Select the statement which explains the meaning of the symbol 6d5. A. The principal quantum number (n) is 6, the angular momentum quantum number (ell) is 5, and there are 2 electrons in the subshell. B.

Lab Questions 1. Why must the Alka-seltzer mixture in the beaker be stirred after the reaction is completed?

What determines the chemical property of an atom? the number of: question 2 options: protons in the nucleus electrons in the outermost shell neutrons in the nucleus isotopes of the atom?

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

The middle ear converts sound from what into vibrations that can be sent through what?

What is the number of mole equivalents of H2 produced by the reaction of 1 mole equivalent of Mg (m) with H2SO4 (aq) ?

For two variables in a direct proportion, what is the result of doubling one variable? the other variable is doubled the other variable is halved the other variable stays constant

Electrons located in the outermost shell of an atom are called

Sentence for death rate

What two forces cause the arc-shape of projectile motion?