Which is not one of the eight most common elements in earths continental crust

How does the speed of visible light compare with the speed of gamma rays, when both speeds are measured in a vacuum? A. The speed of visible light is greater B. Speed of gamma rays is greater C. Speeds are the same D.

The gas inside a balloon is characterized by the following measurements: pressure = 725.5 mmHg; volume = 400.0 mL; temperature = 16.5 C

Which of the following is not a statement of Dalton's atomic theory of matter? a. Elements are made of atomsb. Atoms of a given element are identicalc. The atoms of one element can be identical to the atoms of another elementd.

What occurs when atoms link together in new ways to create a substance diffrent from the original substance? A. a physical change B. a chemical change C. a nuclear reaction D. an inversion

Francisco wrote these notes on one of the scientists who contributed to cell theory: 1838 Studied plants Used a microscope Concluded that plants are made of cells Who are these notes about?

Describe the weather associated with a high presurre system

Which of the following is equal to distance/time?

Which of the following should you always wear to avoid being thrown from a vehicle and then crushed if it tips over?

If the titrant has a molarity of 0.1000 m and there are 45.00 ml of analyte present, what is the molarity of the analyte?

How is the hardness range for a mineral determined?