82. Danny is being careful in handling acids in the laboratory. In diluting acids, she puts the distilled water first before finally adding the acid. This is so because she is dealing with what type of chemical? A. Reactive chemical B. Carcinogenic chemical C. Combustible chemical D. Corrosive chemical 83. Heptane, isopropanol, and methanol must be labelled with flash point below 37.8°C (100°F), this is so because these chemicals are classified as? A. Reactive chemical . B. Carcinogenic chemical C. Combustible chemical D. Corrosive chemical 84. Which among the following use of fire extinguisher is/are correctly paired? I. Pressurized water extinguishers: for combustible petroleum products II. Halogenated hydrocarbon extinguishers: for magnesium or sodium caused fire III. Dry-chemical and carbon dioxide extinguishers: for energized electrical equipment IV. M28 dry powder fire extinguishers: for combustible metals A. I and II only B. II and III only C. III and IV only D. II and III only

82. Danny is being careful in handling acids in the laboratory. In diluting acids, she puts the distilled water first before finally adding the acid. This is so because she is dealing with what type of chemical? A. Reactive chemical B. Carcinogenic chemical C. Combustible chemical D. Corrosive chemical 83. Heptane, isopropanol, and methanol must be labelled with flash point below 37.8°C (100°F), this is so because these chemicals are classified as? A. Reactive chemical . B. Carcinogenic chemical C. Combustible chemical D. Corrosive chemical 84. Which among the following use of fire extinguisher is/are correctly paired? I. Pressurized water extinguishers: for combustible petroleum products II. Halogenated hydrocarbon extinguishers: for magnesium or sodium caused fire III. Dry-chemical and carbon dioxide extinguishers: for energized electrical equipment IV. M28 dry powder fire extinguishers: for combustible metals A. I and II only B. II and III only C. III and IV only D. II and III only

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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