Toolkit
how many energy levels does sulfur have?
a. 2
b. 3
c. 4
d. 14

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

The arrangement of particles is most ordered in a sample of