A helium-filled balloon has a volume of 4.50 L when the temperature is 22.5 degrees C and the barometric pressure is 747.3 mmHg. The balloon’s volume is neither increasing nor decreasing, so what is the pressure of the helium inside the balloon? I feel like there's either not enough information here to solve or the answer is simply 747.3 mmHg, but I'm not sure at all. Any help would be much appreciated.

What postulate of the kinetic molecular theory best explains why gases have high fluidity? because collisions between gas particles are elastic, there is no loss of energy as particles flow past each other. because gases consist of large numbers of tiny particles, they spread out and do not come in contact with each other. because the attractive forces between gas particles are negligible, gas particles can glide easily past one another. because the average kinetic energy of gas particles increases as temperature increases, gas particles behave more like a liquid. question 6 compare the compressibility of gases and liquids. support your answer by describing the arrangement of particles in gases and liquids.

The equation picture below shows which type of nuclear reaction u 235 + n x e 134 + sr 100 + 2n

Is a chemical message sent by another individual.