Which statement best describes how chemical equations demonstrate conservation of mass?
a.
the number of reactants is the same as the number of products.
b.
the compounds are the same on each side of the reaction.
c.
the number of atoms of each element is the same on each side of the equation.
d.
the state of matter is the same on each side of the equation.

If you are solving y2+2y=48 by completing the square, the next line would be y2 + 2y - 48 = 0 y2 + 2y + 4 = 52 y2 + 2y +1 = 49

Which of the following best describes the difference between “autobiography” and “memoir”? a. autobiography is written about the author's own interpretation of events; memoir is a written interpretation of events. b. memoir covers a particular time in the writer’s life or recounts life events around one or two themes; autobiography covers the entire story of the author's life and has multiple themes. c. autobiography covers the entire story of the writer's life and has multiple themes; memoir is a shorter written work with one theme. d. autobiography covers entire story of the writer's life and has multiple themes; memoir is the writer’s random memories about past experiences.

What are the two main purposes of edgar allen poe’s, “the masque of the red death? ”