Which of the following are examples of physical change? Copper oxidizing Iron rusting Carbon dioxide sublimating Water evaporating

What is the net ionic charge of a calcium ion?

From the data, they concluded that bubble wrap was the best insulating material. What is the weakness in the conclusion? A) It is the better of two insulators only; it is not the best insulator.

What may happen if the oceanic plates stop moving? A. Erosion would change the color of Earth's surface. B. There would be no new island formations. C. Volcanoes and earthquakes will destroy life on Earth. D.

What is a atom and what do atom do in the world

What is the molarity of a solution that has 2.0 mol of MgF2 dissolved in enough water to make 1.29 L of solution?

Which part of the body does colchicine affect the most

Balance and identity the type of chemical reactions. Mg (s) + HNO3 (aq) - > H2 (g) + Mg (NO3) 2 (aq)

Which radioactive element is used to determine the absolute age of late pleistocene animal remains?

Compare the practical uses and limitations of nuclear fission and fusion. Include in your answer a detailed description of the two processes, comparing and contrasting them in terms of the types of atoms involved, the conditions needed to get the

Why can two igneous rocks have the same minerals but different names?