Asalt is best described as a compound that is formed from the reaction between

an acid and a base

a strong acid and a weak acid.

a strong base and a weak base.

an acid and water

The half-life of radioactive element krypton-91 is 10 seconds. if 16 grams of krypton-91 are initially present, how many grams are present after 10 seconds? after 50 seconds?

What four properties do all waves have in common

The temperature on Mercury may drop to - 263 °F at night. What is this temperature in degrees Celsius?

A 0.150 M sodium chloride solution is referred to as a physiological saline solution because it has the same concentration of salts as normal human blood. Calculate the mass of NaCl solute needed to prepare 275.

Which of the following scientists played a role in the development of the wave-mechanical model? Thomson Rutherford Bohr de Broglie

The anion formed from an oxygen atom is called a (n) a. oxygen ion. c. carbon dioxide. b. oxide ion. d. nitrous oxide.

These values also increase from the bottom to the top of a group because the size of the atom decreases, resulting in a distance between the nucleus and the valence electron shell, which increases the attraction between the protons and electrons.

Given Mg (CO3) 2, CO2 and Cu3 (PO4) 2, provide the names for each of these molecules.

How does probability fit into the description of the atom?

Copper conducts electricity, while sugar, C6H12O6, does not. Can you explain why this is so in terms of structure and/or bond types.