Explain why an alloy is used in aircrafts and why an alloy is better suited to this purpose than pure aluminum. include the properties of the pure metal and of the metals that are added.

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

Here’s one way to follow the scientific method. place the missing steps in the correct position in the process

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.