Zinc is very essential element for human body, why? give reason.

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

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

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.