How can both a celsius scale thermometer and a kelvin scale thermometer indicate the same temperature change but not the same final temperature reading?

What is the most important thing you need to remember for physical change?

After two half-lives, how much of the original material has decayed? 25 percent 50 percent 75 percent 100 percent

Select the correct answer. Why does every chemical reaction require a certain amount of activation energy? O A Energy is released when the reactants begin to react. O B. Energy lost to the environment during the reaction must be replaced.

For the reaction, 4 A (g) + 3 B (g) = > 2 C (g), the following data were obtained at constant temperature. Experiment Initial A, mol/L Initial B, mol/L Initial Rate, M/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 20.0 4 0.400 0.300 40.0 1.

A 3.585 g sample contains carbon, 1.388 g of h, 1.850 g o, and the molar mass is 62.00 g. what is the molecular formula for this substance?

1) Explain why oxygen is a fairly reactive element while neon is not. 2) Explain why beryllium loses electrons when forming ionic bonds, while sulfur gains electrons. 3) Explain why fluorine and chlorine have similar reactivities (Hint.

You add heat to matter, the atoms that make up the matter will begin to move?

What is the h2 h2o molar ratio?

Which of earth's systems was most affected by fossilized dinosaurs? A. Biosphere B. Hydrosphere C. Lithosphere D. Atmosphere

What factors are used to determine whether a bond will be polar or nonpolar? And what factors are used to determine whether a molecule will be polar or nonpolar?