The closeness of particles of gas in the low speed allows into molecules forces to become important at certain pressures and temperatures. which best describes the statement

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

How are isotopes of the same chemical element alike? how are they different?

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks. energy was destroyed inside the blocks. energy was absorbed into the blocks from outside the system. energy was transferred from the warmer block to the cooler block.