Identify the atom that increases in oxidation number in the following redox reaction. 2MnO2 + 2K2CO3 + O2?2KMnO4 + 2CO2

a. O

b. Mn

c. KD. C

What does the state symbol aq mean when written after a chemical compound in a chemical equation?

Describe the basic structure of the atom

Number of protons in Xe

What is it called when energy transfers between objects until they reach the same temperature and their particles move at the same rate? Kinetic Energy Thermal energy Thermal equilibrium Movement

Name of compound that has the formula pcl3

Is fire hot or cold?

In Flask A, you reacted 7.23 g Mg with 1.05 mol HCl. In Flask B, you reacted 1.22 g Mg with 1.35 mol HCl. Which balloon will inflate the most?

I have 2 electrons is the first shell, 8 in the second, and 6 in the third

The production of plastics makes life, so it benefits society. On the other hand, the production of plastics causes air and water, so it also harms society.

The total number of moles represented by 20 grams of CaCO3 is