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# Test 2 - 1 Precision refers to A how close a measured...

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1) Precision refers to __________. A) how close a measured number is to the calculated value B) how close a measured number is to infinity C) how close a measured number is to the true value D) how close a measured number is to other measured numbers E) how close a measured number is to zero Answer: D Page Ref: Sec. 1.4 2) Accuracy refers to __________. A) how close a measured number is to the true value B) how close a measured number is to infinity C) how close a measured number is to zero D) how close a measured number is to other measured numbers E) how close a measured number is to the calculated value Answer: A Page Ref: Sec. 1.4 3) Which of the following has the same number of significant figures as the number 1.00310? Page Ref: Sec. 1.4 4) When the following equation is balanced, the coefficient of FeCl 3 is __________. FeCl 3 + Na 2 CO 3 ¬ Fe 2 (CO 3 ) 3 + NaCl Page Ref: Sec. 3.1

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