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States of Matter 107
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Solutions 61
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Nomenclature 15
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Hydrocarbons 13
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Alcohols 3
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Amines 2
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Polymers 5
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Biomolecules 13
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Proteins 26
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Enzymes 4
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Lipids 14
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Metabolism 39
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Vitamins 4
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Hormones 1
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Alloys 1
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Nucleus 1
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Cell Cycle 18
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Ecosystem 35
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Biomes 24
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Food Chains 15
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Biodiversity 23
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Habitat 4
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Skeletal System 116
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Nervous System 110
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Porifera 6
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Cnidaria 6
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Nematoda 6
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Annelida 7
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Arthropoda 12
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Mollusca 4
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Chordata 5
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Fish 76
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Amphibians 10
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Reptiles 14
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Birds 2
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Mammals 106
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Anatomy 17
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Physiology 19
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Reproduction 23
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Behavior 63
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Bacteriology 32
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Virology 32
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Mycology 16
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Parasitology 51
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GMOs 4
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Bio Enzymes 21
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Bio Hormones 32
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B Cells 1
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Clouds 1
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Marine Life 47
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Wetlands 5
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Tsunamis 1
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Quizzes, Questions & Answers
Recent Quizzes
Are you familiar with bond energy, and do you think you know enough to pass this quiz? When a bond is strong, there is superior bond energy because it takes more energy to break a strong bond. This strength is associated with...
Questions: 10 | Attempts: 345 | Last updated: Mar 22, 2023
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Sample QuestionCalculate the quantity of released heat of combustion of 5.76g of methane gas (CH4) in an excess amount of oxygen gas at constant pressure CH4(g)+2O2(g)→ CO2(g)+2H2O(l) , ∆H°= -890kj/mol ,(C=12,H=1)
What do you know about bond energy? Bond energy is the measure of a chemical bond to strengthen a chemical bond. This boost means that it demonstrates bond energy tells us how likely a pair of atoms is to remain bonded in the...
Questions: 18 | Attempts: 495 | Last updated: Mar 21, 2023
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Sample Question∆H°f stands for the ……………
Quiz NO.3 'Heat content' tests understanding of exothermic and endothermic reactions, including concepts like heat of reaction and energy changes in chemical processes.
Questions: 16 | Attempts: 173 | Last updated: Mar 14, 2023
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Sample QuestionState whether each of the following are exothermic or endothermic. a-1. H + Cl ---------- HCl H=-432 kJ
This quiz titled 'Part B Exothermic or Endothermic reactions' assesses understanding of reaction energetics. It includes determining whether reactions are exothermic or endothermic based on enthalpy changes, enhancing skills in...
Questions: 10 | Attempts: 237 | Last updated: Mar 21, 2023
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Sample QuestionC6H12O6 + 6O2 --> 6CO2 + 6H2O ∆H = -2803 kJ
• Learn the definition of a system. • Understand the First Law of Thermodynamics. • Appreciate the concept of disorder, and what it means in biological systems. • Understand the Second Law of...
Questions: 11 | Attempts: 258 | Last updated: Mar 22, 2023
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Sample QuestionGlycolysis is a process that can run anaerobically.True or False?
This is a quiz to test how much learning you've gathered from watching the videos.
Questions: 11 | Attempts: 996 | Last updated: Mar 22, 2023
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Sample QuestionThe dissolving of potassium iodide in water is an endothermic process. Which graph shows the temperature changes that occur when potassium iodide is stirred with water until no further change in temperature is observed?
This quiz is to help students prepare for the thermo chemistry exam
Questions: 20 | Attempts: 499 | Last updated: Mar 21, 2023
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Sample QuestionWhat percentage of acetic acid is legally allowed in vinegar?
This Chemistry Ch16&17 Exam assesses knowledge in thermodynamics, focusing on concepts like enthalpy, entropy, and free energy changes. It includes practical energy conversion calculations and requires understanding of...
Questions: 90 | Attempts: 300 | Last updated: Mar 20, 2023
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Sample QuestionFor a process, the enthalpy change of a system is 1.25 x 105 J and the entropy change is 300.0 J/K. Calculate the free energy change of the system at 290 K.
Endothermic and Exothermic are chemical reactions that absorb and release heat. An example of an endothermic reaction is photosynthesis. An exemplar of an exothermic reaction is combustion. Specifically, exothermic reactions...
Questions: 10 | Attempts: 6305 | Last updated: Jun 5, 2024
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Sample QuestionC6H12O6 + 6O2 à 6CO2 + 6H2O ∆H = -2803 kJ
This quiz, titled 'Reaction Represented Chapter 6', assesses understanding of thermochemical calculations, including heats of formation, enthalpy changes, and specific heat. It is designed for learners to apply concepts to solve...
Questions: 5 | Attempts: 694 | Last updated: Mar 21, 2023
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Sample Question4 NH3 (g) + 3 O2 (g) --> 2 N2 (g) + 6 H2O (g)If the standard molar heats of formation of ammonia, NH3 (g), and gaseous water, H2O (g), are -46 kJ/mol and -242 kJ/mol, respectively, what is the value of for the reaction represented above?
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