A student pours 28.0 g of Hg at a temperature of 87.6°C into a Styrofoam cup filled with water at 13.0°C. If the specific heat of Hg is 0.139 J/gºC, and the final temperature of the mixture is 15.5°C, how much
water was in the calorimeter?

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

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.

When did stem cell research become known ? who discovered stem cell? what experiments or studies have been conducted so far?