What is the very small center core of an atom is called?

What is an acid-base indicator?

Which of the following statements best describes why radioactive decay occurs? A) the electric force causes electrons to be released. B) the electric force and nuclear forces are in opposition to each other. C) nuclear forces disintegrate protons.

Which group are most stars found in

What fact shows that baking a chocolate chip cookie is a chemical reaction? The final product tastes and looks different from the original ingredients. All of the ingredients are mixed up in the cookie.

Explain how to balance the chemical equation and classify its reaction type. ___C5H5 + ___ Fe ⟶ ___Fe (C5H5) 2

In the Periodic Table, what is the relationship between two elements that are placed side-by-side in a row? A. The element on the left has one more electron. B. The element on the left has one more proton. C.

What are two traits of pseudoscience

What will happen if an electric current is flowing through a cord and a magnet is brought near the cord?

Lithium has two isotopes. Li-6 and Li-7. Li-6 mass = 6.015121amu Li-7 mass = 7.016003amu Lithium Mass = 6.94049amu What is percent abundance of Li-6? I know that there is an equation: 6.

Why does an apple fall toward the earth, instead of the earth moving toward the apple?