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 […]
Can you diffract a human?
Can you diffract a human? Since Plank’s constant is on the order of 10-34, the de Broglie wavelength is virtually undetectable for large amounts of matter. There is much evidence of matter possessing such a de Broglie wavelength. Well, theoretically, since all matter possess wave-like properties, so do humans, and cats, and whatever you please. […]
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 are the similarities and differences between weathering and erosion?
What are the similarities and differences between weathering and erosion? When the smaller rock pieces (now pebbles, sand or soil) are moved by these natural forces, it is called erosion. So, if a rock is changed or broken but stays where it is, it is called weathering. If the pieces of weathered rock are moved […]
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 […]
How do I find my 14 pin IC?
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 […]