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Which statement best describes the molecules in a solid? A: Molecules move completely at random and at very high speeds. B: Molecules expand to the edge of their container. C: Molecules vibrate in a fixed position and do not move around much.

Zinc (Zn loses 2 valence electrons) and Nitrogen (N) How does zinc complete the octet rule? What charge is on the zinc ion? What type of ion is zinc (cation/anion) ? How does nitrogen complete the octet rule? What charge is on the nitrogen ion?

If this wave happened over a period of 60 seconds what is the calculated frequency in hertz A) 5.3 Hz B) 2.5 Hz C) 3 Hz D) Cannot be determined from the information provided

If a plant uses 44 grams of carbon dioxide and 18 grams of water to produce 32 grams of oxygen, how many grams of glucose are produced for the plant to use 6H2O + 6CO2 - - > C6H12O6 + 6O2

The acid-dissociation constants for three acids are shown in the table. Which is the strongest acid? phenol formic lactic

summarize what you read on the two articles by identifying the advantages and disadvantages of using plastics

What happens chemically when quick lime is added to water?

What was the crop that led to the success of Jamestown? A) cotton B) sugar cane C) tobacco D) indigo

The currents of the Earth's oceans are caused by A. marine organisms and volcanic eruptions. B. disturbances by submarines and large ships. C. waves and earthquakes along tectonic plate boundaries. D.

You are on an alien planet where the names for substances and the units of measures are very unfamiliar. Nonetheless, you obtain 19 quibs of substance called skvarnick.