what is the density of a substance that has a mass of 2.0 g, and when placed in a graduated cylinder the volume rose from 70 mL to 75 mL

A mixture of 0.220 moles co, 0.350 moles f2 and 0.640 moles he has a total pressure of 2.95 atm. what is the pressure of co?

What happened if the kinetic energy of a gas is lowered

How many milliliters of 2.0 M NaCl solution would you need to make 250 ml of 0.15 M solution

A chemical reaction begins with 356kJ of energy and ends with 456kJ of energy. What is the enthalpy of the reaction? Was the reaction endothermic or exothermic?

Iron has a density of 7.86 g/cm^3 (1 cm^3=1 mL). Calculate the volume (in dL) of a piece of iron having a mass of 4.62 kg.

What process occurs as pieces of dry ice get smaller

What happens to ice as it melts? A. The average kinetic energy of the water molecules decreases. B. The released energy increases the intermolecular forces. C. The absorbed energy breaks apart intermolecular forces. D.

Why do scientists think that the solar nebula is important for earth

How many liters in. 75 moles of methane gas at stp?

Is B2O3 molecular or ionic