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Iron reacts with oxygen to produce iron oxide (rust). this reaction is represented in an equation as 4fe + xo2 β 2fe2o3. identify the value of x that will balance the equation.
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Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above
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The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)
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Afood web in a rain forest is shown below. which of the following most likely occupies the location...
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