A scientist observes a galaxy through his telescope. He knows he's observing a galaxy but can't make out its shape. However, he notices that the galaxy appears
red. What type of galaxy is he observing?

What does x represent in the formula for the compound xcl4?

Need ! asap will mark 10 pts using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?