If a substance changes color, what has most likely happened? A pressurized change has taken place.

A.) A chemical change has taken place.

B.) A physical change has taken place.

C.) Nothing has taken place.

What is the average atomic mass of chlorine if 75.8% of chlorine atoms are 35/17 CL with a mass of 34.9589 amu and 24.2% are 37/17 CL with a mass of 36.9659 amu?

What is the concentration of hydronium ion ([H3O+]) in a solution with a PH of _1,3?

Oxygen sodium and Boron is what kind of matter

Which state of matter is described as an electrically charged gas? Liquid Plasma Solid Vapor

How are protons, electrons, and neutrons correctly compared

Magnesium chloride is a salt formed with ionic bonds between one magnesium ion and two chloride ions. Magnesium has two electrons in its outer shell and chlorine has seven electrons in its outer shell.

What is formed during a chemical reaction when electrons are lost and gained?

During a nuclear reaction, mass is converted into (1) charge (2) energy (3) isomers (4) volume

The temperature reading of - 14°C corresponds to a Kelvin reading of: -287 K. 287 K. 297.6 K 259 K.

If element X consists of 64.6% of atoms with a mass of 34.0 u, 18.2% of atoms with a mass of 35.0 u, and 17.2% of atoms with a mass of 36.0 u, what is the average atomic mass of element X to the nearest hundredth?