8) Oxidation cannot occur without A) oxygen B) water C) reduction D) waiting E) acid quantity 9) A 0.200 M K2SO4 solution is created by 9) A) diluting 20.0 ml. Of 5.00 M K2S04 equipment to 500.0 ml B) dissolve 20.2 g solution to a full volume that 500.0 mL C) dissolve 43.6 g that K2S04 in water and diluting to a complete volume of 250.0 ml. D) dilution that 250.0 ml of 1.00 M K2S04 to 1.00 l E) dilution the 1.00 ml that 250 M K2503 to 1.00 l 10) What volume ( mL.) that a focused solution the magnesium chloride (9.00 M) need to be diluted come 10) 350. ML. To make a 2.75 M systems of magnesium chloride? A) 2.75 B) 50.0 C) 350 D) 107 E) 45.0 cap volume (L) the 0.250 M HNO3 is required to neutralize a solution all set by dissolve 17.5 11)_ g that NaOH in 350 mL that water? A) 0.44 B) 1.75 10-3 C) 50.0 D) 1.75 E) 0.070 12) 12) The allude in a titration at which the indicator transforms is dubbed the A) standard allude B) end suggest C) indicator suggest D) volumetric suggest E) setpoint 13) 13), is an oxidation reaction. A) Neutralization that HCI by NaOH B) Table salt dissolving in water for food preparation vegetables C) ice cream melting in a soft drink Di Rusting of stole

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y-(6.75x 10)-(5.44 x 10) 7 given the two r mesns X 0,00957 /2 94645 The best answers because that "X" and also "Y" space 4.765 x 10-2 and D. 3.2480 x 10-3 and-4.765x 10-2 10-1 B. 3.25 x 103 A. 3.25 x 10 C. 0.00325 and also 4.765 x 10- and also 4.76 x 102 E. 3.2480 x 103 and also 4.76 x 10- 8. In the exactly order, identify whether the dots ~ above the figures below are accurate, precise, both precise & precise, or neither exact nor precise: number 1 figure 2 figure 3 number 4 A. Precise, Accurate, Neither, Both B. Accurate, Precise, Neither, Both C. Precise, Accurate, Both, neither D. Both, Accurate, Neither, an accurate E. Both, Precise, Neither, specific 9. In the laboratory Measurement experiment, an Erlenmeyer flask has actually a massive of 109.89 g. Upon addition of 30.00 mL ethanol, the fixed of the flask to be 134.22 g. What is the calculated thickness of ethanol? A. 3.663 g/mL B. 0.8110 g/mL C. 1.233 m/g D.4.474 gmL E. 02235 mUg 10. What is the thickness of one unknown metal, with the suitable number of significant figures, given the following data: mass of steel sample: 18.567 g early Volume of graduated cylinder: 48.8 mL last Volume of i graduated cylinder: 53.3 mL A. 4.6 g/mL B. 0.269 mL/g C. 4.1 g/ml D. 0.348 ml/g E. 0.35 g/mL 11. Offered the ruler (i.e., meter stick) below, what is the measurement reading of this thing (with the exactly number of far-ranging figures)? 0 .1 2 .3 4 5 A. 0.26 m B. 0.2610 m C. 0.26100 m D. 0.260 m E. 0.2600 m

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y-(6.75x 10)-(5.44 x 10) 7 given the two r mesns X 0,00957 /2 94645 The finest answers for "X" and "Y" are 4.765 x 10-2 and D. 3.2480 x 10-3 and-4.765x 10-2 10-1 B. 3.25 x 103 A. 3.25 x 10 C. 0.00325 and also 4.765 x 10- and also 4.76 x 102 E. 3.2480 x 103 and also 4.76 x 10- 8. In the exactly order, recognize whether the dots ~ above the figures below are accurate, precise, both precise & precise, or neither accurate nor precise: number 1 number 2 figure 3 figure 4 A. Precise, Accurate, Neither, Both B. Accurate, Precise, Neither, Both C. Precise, Accurate, Both, no D. Both, Accurate, Neither, precise E. Both, Precise, Neither, accurate 9. In the activities Measurement experiment, an Erlenmeyer flask has a fixed of 109.89 g. Upon enhancement of 30.00 mL ethanol, the mass of the flask to be 134.22 g. What is the calculated thickness of ethanol? A. 3.663 g/mL B. 0.8110 g/mL C. 1.233 m/g D.4.474 gmL E. 02235 mUg 10. What is the density of an unknown metal, v the appropriate number of significant figures, provided the adhering to data: fixed of steel sample: 18.567 g initial Volume of i graduated cylinder: 48.8 mL final Volume of graduated cylinder: 53.3 mL A. 4.6 g/mL B. 0.269 mL/g C. 4.1 g/ml D. 0.348 ml/g E. 0.35 g/mL 11. Given the ruler (i.e., meter stick) below, what is the measurement reading of this thing (with the exactly number of far-reaching figures)? 0 .1 2 .3 4 5 A. 0.26 m B. 0.2610 m C. 0.26100 m D. 0.260 m E. 0.2600 m