What are four ways you can tell a chemical change has occurred?

In the story, juvencio states that he had to kill don lupe. what does this line reveal about how he views his deed? (tell them not to kill me)

In the poem "we wear the mask," paul laurence dunbar voices his repressed anger and frustration toward american society. he repeats the title phrase three times in the poem, using the words mask and we to show that the first use of the phrase is matter-of-fact. in the second stanza, the statement is followed by a period, which shows resignation. however, at the end of the poem, dunbar almost shouts the phrase defiantly. the mask seems to become something he wears proudly. through this gradual emphasis on the phrase, dunbar could be implying that

Why would the following likely fail as the basis for an evaluative argument? "the theme of gender bias among adults is an important one"a: it is based on a moral judgment that not everyone sharesb. it is based on the writers personal tastec. it is based on faulty assumptiond. none of the above