This is formed when an atom loses an electron to another atom.

Two atoms have the same number of protons but different number of neutrons. what can you conclude about these masses

Two cubes sit side-by-side. The side length of a larger cube is 2.50 times the side length of the smaller cube. How many times larger is the volume of the larger cube then the volume of the smaller cube? Round to three significant figures.

11) When salt and water are mixed, they form a solution like in the ocean. When sand and water are mixed, they form a mixture where the sand does not dissolve. Which statement might summarize this observation? A) Mixtures and solutions are the same.

What happens to the solids in wastewater at a wastewater treatment plant? A. They are used as fertilizer on hay fields. B. They are chemically aerated and released into the air. C. They are released into a river, lake, or ocean. D.

Compared to a potassium atom, a potassium ion has A) a smaller radius B) a larger radius C) fewer protons D) more protons

Na and Mg ions each have ten electrons surrounding their nuclei. which ion would you expect to have the larger radius? Explain your answer

A bowl of trail mix and a bowl of soup are examples of what type of matter? 9 (a) solution (b) heterogeneous mixture (c) element (d) compound

What's difference between "formula unit" and "molecule"?

It is nighttime where Candice lives, so A. she will be able to see half of the Sun in the sky. B. she will be able to see both the Sun and the Moon in the sky. C. she will not be able to see the Sun in the sky. D.

How many moles are in 1.2*10^3g of ammonia