Katy wrote the following examples of changes in substances. example a: butter melts on warm toast. example b: drink mix dissolves in water. which statement is correct? both are examples of physical changes. both are examples of chemical changes. example a describes a physical change and example b describes a chemical change. example a describes a chemical change and example b describes a physical change.

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

In order to complete this lab. you will need to be familiar with some common chemistry terms. complete the chemical change puzzle and list the relevant terms and their meaning below a.rectant b.product c.supernate

An atom holds 7 electrons. use orbital notation to model the probable location of its electrons. an atom hold 22 electrons. use orbital notation to model the probable location of its electrons. an atom holds 17 electrons. use orbital notation to model the probable location of its electrons.