a student in chm 11500 lab measured the mass of a 250-ml erlenmeyer flask and recorded it as 79.83 g. she added 10.00 ml of deionized water from a 25-ml buret to the flask. the mass of the flask plus the water was 89.82 g. the temperature of the water was 22 °c. what is the calculated volume of the water that the student measured?

Si una estrella no tiene paralaje medible, ¿qué puedes inferir?

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?

The table lists the lattice energies of some compounds.compoundlattice energy (kj/mol)lif            –1,036licl            –853naf            –923kf            –821nacl            –786which statement about crystal lattice energy is  best  supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf.the lattice energy increases as the cations get larger, as shown by lif and licl.the lattice energy decreases as cations get smaller, as shown by nacl and naf.the lattice energy decreases as the cations get smaller, as shown by naf and kf.