The glass hand bubbler holds a red liquid. When it heats up, do you see a chemical change or a physical change? How do you know?

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

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.

One nanometer is equal to how many meters?