A substance that exist in the gaseous state at room temperature

A sample of hydrogen gas has a volume of 8560. mL at standard temperature and a pressure of 1.50 atm. Calculate the number of moles of H, present in this gas sample.

What would happen if a jar of helium gas was opened

Dmitri Mendeleev's periodic law states that the chemical and physical properties repeat themselves in groups of A. 4 B. 8 C. 12 D. 16

The warmer water contacting the ice cube transfers energy to that ice cube through what process

Two solutions, initially at 24.60°C, are mixed in a coffee cup calorimeter. When a 100.0 mL volume of 0.100 M AgNO3 solution is mixed with a 100.0 mL sample of 0.200 M NaCl solution, the temperature in the calorimeter rises to 25.30°C.

During the synthesis of a triglyceride from its subunits, how many molecules of water are produced from dehydration synthesis?

Which symbol represents a salt? C2H2 NaCl O2 C6H12O6

How many electrons does zinc lend?

Solid iron has a density of 7.9 g/cm3. Liquid mercury has a density of 13.6 g/cm3. will iron float or sink in mercury explain

Convert 6.42 moles of H2O to molecules