Please help :) What is the purpose of a unit conversion?
A. To express a scientific expression in a general form all scientists
can understand
B. To change an amount in one unit to its equivalent amount in
another unit
C. To keep track of the units associated with a number throughout an
equation
D. To express the amount of something in terms of its number of
smallest units

What is the standard unit of measure for acceleration?

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.

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.