Complete the following chart using your class notes. Use the virtual simulator. Hot Pack/Cold Pack Simulator. Compound

Beginning Temp.

End Temp.

Change in Temp. (End temp. - Beg. Temp.)

(If the temp. decreased, be sure to put a negative sign (-) in front of the number. If the temp. increased, be sure to put a positive sign (+) in front of the number.)

Sodium Chloride

21° C

° C

° C

Lithium Chloride

21° C

° C

° C

Sodium Hydroxide

21° C

° C

° C

Potassium Chloride

21° C

° C

° C

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.