How does a catalyst decrease activation energy? A catalyst can lower the activation energy for a reaction by: orienting the reacting particles in such a way that successful collisions are more likely. reacting with the reactants to form an intermediate that requires lower energy to form the product. What is difference between positive and negative […]
What are five differences between plant and animal cells?
What are five differences between plant and animal cells? A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds […]
What is amplitude Class 8 Definition?
What is amplitude Class 8 Definition? The maximum displacement of a vibrating object from its Central position is called the amplitude of vibration. The amplitude actually tell us how far the vibrating object is displaced from its central position. What is the amplitude of sound? The amplitude of a sound wave is the measure of […]
How do you overcome lack of physical activity?
How do you overcome lack of physical activity? Social support Explain your interest in physical activity to friends and family. Ask them to support your efforts. Invite friends and family members to exercise with you. Plan social activities involving exercise. Develop new friendships with physically active people. What physical activity is the least expensive? Walking […]
Is the Ferber method cruel?
Is the Ferber method cruel? The Ferber method is not appropriate as a treatment for most child sleep problems. When parents consider sleep training, it’s usually because their children are experiencing bedtime problems and/or disruptive night wakings. How do I teach my baby to self soothe? Master the timing. Create a bedtime routine. Offer a […]
What does a sign in the Device Manager indicate?
What does a sign in the Device Manager indicate? On Windows 10, sometimes, Device Manager will show a device with a yellow exclamation mark. When this happens, it indicates that the system has encountered a problem with that particular piece of hardware. Usually, it comes down to a hardware conflict of some sort, or missing […]
Can I lift a 100 pound box?
What is the least common form of residence Pattern?
Do polar molecules have to be asymmetrical?
Do polar molecules have to be asymmetrical? Polar molecules MUST have an asymmetrical structure to be polar, because symmetry cancels out net charge. Asymmetrical molecules are always polar. Symmetrical molecules can be polar and non-polar. Polarity is dependent on the difference in electronegativity of the molecule’s atoms and shape. What is an example of asymmetrical? […]
Is energy released in alpha decay?
Is energy released in alpha decay? The energy released in this α decay is in the MeV range, about 106 times as great as typical chemical reaction energies, consistent with many previous discussions. Most of this energy becomes kinetic energy of the α particle (or 4He nucleus), which moves away at high speed. Is energy […]