An experiment is performed in which a crystalline substance is added to a beaker filled with room-temperature water. The following observations were made: 1. The crystals dissolve.2. A precipitate forms.3. The bottom of the beaker feels warm to the touch.4. Bubbles begin to form in the water.

Globalization and technology developments have led to what some individuals have described as "flat world." what is the significance of the flat world concept? what is the impact of the flat world on supply chain requirements and strategies?

Africa, 1914 which statement is the best conclusion for the information presented in the map? a) european colonization had a positive impact on african nations. b) african colonization the economic growth of all european nations involved. c) by the outbreak of world war i, most of the african continent was under english control. d) by the outbreak of world war i, most of the african continent was under european control.

Any study/memorization tips? i have exams in a week and it would be great to try suggestions!you ; )