What is another galaxie we know of other than the milky way

Explain why either liquids nor gases have permanent shapes

A closed vessel system of volume 2.5 L contains a mixture of neon and fluorine. The total pressure is 3.32 atm at 0.0°C. When the mixture is heated to 15°C, the entropy of the mixture increases by 0.345 J/K.

Seafloor spreading provides evidence of which of the following Earth processes? A. erosion of coastlines B. weathering of mountains C. movement of crustal plates D. formation of sedimentary rocks

Plants absorb light energy and store that energy in the form of what? A water B carbon dioxide C sugar D oxygen

A geochemist in the field takes a 46.0 mL sample of water from a rock pool lined with crystals of a certain mineral compound X. He notes the temperature of the pool, 21·C, and caps the sample carefully.

Which combustion product is a deadly gas that you cannot see or smell

All atoms that can enter into chemical reactions do so to either share, gain or lose electrons to achieve a stable state. True False

Which pressure measurement describes the lowest gas pressure? a.) 840 Torr b.) 1.2 atm c.) 95,000 Pa d.) none

The average cup of coffee contains about 125 mg of caffeine, C8H10N4O2. Caffeine is also found in tea, colas, and headache remedies. What is the mass (in grams) of one molecule of caffeine?

A tank contains 200 L of fluid in which 30 grams of salt are dissolved. Brine containing 1 g of salt per liter is then pumped into the tank at a rate of 4L/min; the well mixed solution is pumped out at the same rate.