What are 3 basic characteristics of molecular compounds? Physical Properties of Molecular Compounds Property Ionic Compounds Molecular Compounds Physical state at room temperature Solid Gas, liquid, or solid Water solubility Usually high Variable Melting and boiling temperatures Generally high Generally low Electrical conductivity Good when molten or in solution Poor Why do molecular compounds have […]
Did Michael Faraday invent electricity?
Did Michael Faraday invent electricity? In 1825 he isolated and described benzene. What’s more, in 1821 he invented the first electric motor, and in the early 1830s he discovered a way to convert mechanical energy into electricity on a large scale, creating the first electric generator. Who invented the first electric engine? Michael Faraday What […]
What are two substances?
What are two substances? Two Main Types of Pure Substances Elements and compounds are the two types of pure substances. Examples of common elements include carbon, nitrogen and hydrogen. They consist of one type of atom and cannot break down into something else. Every pure carbon substance, for example, has the same particles in it. […]
Why we should not ban smoking?
Why we should not ban smoking? Scientists agree that smoking is dangerous. Tobacco smoke can cause cancer, strokes and heart disease. Smoking does not just harm the smoker – it also harms people nearby, who breathe in the smoke (this is called “passive smoking”). Smokers choose to smoke, but people nearby do not choose to […]
How many vertical columns are there in Mendeleev periodic table?
How many vertical columns are there in Mendeleev periodic table? eight vertical columns What name is given to the vertical columns in Mendeleev periodic table? groups Which period is the longest period in the modern periodic table? sixth period What is the longest period? A menstrual period that lasts longer than seven days is considered […]
What is the shortest unit in music?
What is the shortest unit in music? Music Test One Question Answer What is the smallest unit of music? A note Define phrases. Brief musical statements used to mimic speech In music, what is like a period in a sentence? Cadence Define cadence. A point of arrival, where the melody comes to rest What is […]
What are the 3 types of adaptations?
What are the 3 types of adaptations? There are three different types of adaptations: Behavioural – responses made by an organism that help it to survive/reproduce. Physiological – a body process that helps an organism to survive/reproduce. Structural – a feature of an organism’s body that helps it to survive/reproduce. What are 3 plant adaptations? […]
What does it mean if a circuit is in steady state?
What does it mean if a circuit is in steady state? In electronics, steady state is an equilibrium condition of a circuit or network that occurs as the effects of transients are no longer important. Steady state is reached (attained) after transient (initial, oscillating or turbulent) state has subsided. Why does a capacitor act as […]
What are the three steps in the control process?
What are the three steps in the control process? Steps Involved in Control Process – Establishing Standards, Measuring Performance, Performance Appraisal and Correcting the Deviations. Basically the process of control involves three steps i.e.- (i) setting up standards (ii) performance appraisal and (iii) corrective measures. What are the 3 types of control? Three basic types […]
How does covalent bonding affect melting point?
How does covalent bonding affect melting point? Covalent compounds have bonds where electrons are shared between atoms. Due to the sharing of electrons, they exhibit characteristic physical properties that include lower melting points and electrical conductivity compared to ionic compounds. What type of bonding has the lowest melting point? Covalent Molecules Which bond is strongest […]