What happens if centrifuge is not balanced? Centrifuges, which operate at high speed, have great potential for injuring users if not operated properly. Unbalanced centrifuge rotors can result in injury or death. Sample container breakage can release aerosols that are harmful if inhaled. What is the principle of centrifuge? A centrifuge works by using the […]
Are we due for another Ice Age?
Are we due for another Ice Age? Researchers used data on Earth’s orbit to find the historical warm interglacial period that looks most like the current one and from this have predicted that the next ice age would usually begin within 1,500 years. What is the biggest problem with climate change? Climate change is already […]
What happens to equilibrium when a strong acid is added?
What happens to equilibrium when a strong acid is added? If hydrochloric acid was added to the equilibrium mixture, both hydrogen ions (H +) and chloride ions (Cl -) are being added. Hydrogen ions are on the right hand side of the equilibrium, therefore the equilibrium will shift to the left hand side to compensate, […]
What is the pH of calcium carbonate?
What is the pH of calcium carbonate? At pH values of less than about 6, mostly dissolved carbon dioxide and a small amount of carbonic acid exist in water. At pH values of between about 6.5 and 10, bicarbonate is dominant. At pH values greater than about 10.5, the carbonate ion dominates. What does CACO3 […]
At what age are people most physically active?
At what age are people most physically active? Age The age group 18 to 44 was the most likely to exercise. Of those individuals age 18 to 44, 59.7 percent reported exercising at least three times a week for half an hour or more. This compares with 53.5 percent and 46.7 percent, respectively, for the […]
Is Proctorio always on?
Is Proctorio always on? Once I install Proctorio, is Proctorio always on? No, Proctorio only runs during an exam. Test Takers can tell when Proctorio is “on” because the Proctorio shield icon will turn green. Proctorio only records during an exam, and if the video/audio/screen recordings settings are enabled by the exam administrator. Can Proctorio […]
Is thermal energy the total kinetic energy of an object?
Is thermal energy the total kinetic energy of an object? Thermal energy is the total internal kinetic energy of an object due to the random motion of its atoms and molecules. It is sometimes confused with internal energy or thermodynamic energy. They consist of the sum of the internal kinetic energy (thermal energy) and the […]
Where are valence electrons located and why are they important?
Where are valence electrons located and why are they important? The electrons that occupy the outer most shell of an atom are called valence electrons. They are important because they determine how an atom will react. By writing an electron configuration, You’ll be able to see how many electrons occupy the highest energy level. Why […]
What do prokaryotes and eukaryotes have in common?
What do prokaryotes and eukaryotes have in common? Both prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm, and DNA. Ribosomes are the non-membrane bound organelles where proteins are made, a process called protein synthesis. Do prokaryotic and eukaryotic cells have Golgi bodies? Eukaryotic cells contain a membrane-bound […]