A student pours two elements together and they react to form matter with entirely different properties than the elements they started with. The

student has made a(n):

1- Heterogeneous Mixture

2-Homogeneous Mixture

3-Compound

4-Element

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 is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous