What is the difference between average acceleration and instantaneous acceleration? Average acceleration is the change of velocity over a period of time. Instantaneous acceleration is the change of velocity over an instance of time. What’s the definition of instantaneous speed? Definition: When the speed of an object is constantly changing, the instantaneous speed is the […]
What is the strongest intermolecular forces in alcohols?
What is the strongest intermolecular forces in alcohols? Alcohols contain the hydroxyl group (O—H) which produce intermolecular forces of attraction through hydrogen bonding. Hydrogen bonds are much stronger than Van Der Waals’ intermolecular forces. Why are alcohols stronger than alkanes? Hydrogen bonding In alkanes, the only intermolecular forces are van der Waals dispersion forces. Hydrogen […]
Why shouldnt you walk on sand dunes?
What do the rows mean on a periodic table?
What do the rows mean on a periodic table? Each row represents one period; the period number of an element indicates how many of its energy levels house electrons. Sodium, for instance, sits in the third period, which means a sodium atom typically has electrons in the first three energy levels. How do you identify […]
Why is water a powerful solvent?
Why is water a powerful solvent? Water is called the “universal solvent” because it is capable of dissolving more substances than any other liquid. Water molecules have a polar arrangement of oxygen and hydrogen atoms—one side (hydrogen) has a positive electrical charge and the other side (oxygen) had a negative charge. How do you know […]
Why is the Cenozoic Era important?
Why is the Cenozoic Era important? Cenozoic Era, third of the major eras of Earth’s history, beginning about 66 million years ago and extending to the present. It was the interval of time during which the continents assumed their modern configuration and geographic positions and during which Earth’s flora and fauna evolved toward those of […]
What are Series sentences?
What are Series sentences? A serial sentence is a sentence that contains a list of three or more words, phrases, clauses, etc. REMINDERS: In-Sentence Lists can be of any type of grammatical unit, such as nouns, verbs, participles, infinitives, or subordinate clauses. Is a series more than two? Series is both a singular and a […]
Who is father of nutrition?
Who is father of nutrition? Antoine Lavoisier Who is the first nutritionist? Adelle Davis (25 February 1904 – 31 May 1974) was an American author and nutritionist, considered “the most famous nutritionist in the early to mid-20th century.” She was as an advocate for improved health through better nutrition…. Adelle Davis Website The Adelle Davis […]
In which of the following cases is the electric field zero but potential is not zero?
In which of the following cases is the electric field zero but potential is not zero? 1. Electric field(E)=0 but Potential(V) is not 0: The electric field is zero at a point exactly midway between two equal and similar charges but the electric potential at that point is twice than that due to a single […]