What can u infer about copper and silver based on their positions relative to each other? How does the nucleus pf a copper atom compare tp the nucleus of a nickel atom?

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?

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.

Explain what happens at the saturation point when adding salt to water at room temperature.