Which of the following is macroscopic? Other examples of macroscopic properties include texture, phase (solid, liquid or gas), viscosity (if any) and density relative to surroundings (such as oil on water). The properties of an element or material tend to change, even if only slightly, as the conditions change. Why density is a macroscopic property? […]
Which statement is best for finding percent error?
Which statement is best for finding percent error? Only the experimental value is needed to calculate percent error. Only the actual, or accepted, value is needed to calculate percent error. A percent error always has a positive value. What statements best define percent error quizlet? What statements best define percent error? It is a mathematical […]
Why is groundwater and surface water interactions important?
Why is groundwater and surface water interactions important? Groundwater and surface water physically overlap at the groundwater/surface water interface through the exchange of water and chemicals. This exchange is a critical part of the hydrologic cycle. What is most groundwater used for? Groundwater supplies drinking water for 51% of the total U.S. population and 99% […]
Which device is used to measure the depth of water?
Which device is used to measure the depth of water? Depth finder, also called echo sounder, device used on ships to determine the depth of water by measuring the time it takes a sound (sonic pulse) produced just below the water surface to return, or echo, from the bottom of the body of water. How […]
Do bronchi have nerves?
Do bronchi have nerves? Their nerve endings, the so-called cough receptors, which are located everywhere in the epithelium of the respiratory tract, throat, larynx, trachea and bronchi, are activated by mechanical and chemical stimuli as well as by released inflammatory mediators (bradykinin and prostaglandins). How does the vagus nerve affect the lungs? One of the […]
What is Neutralisation give two examples?
What is Neutralisation give two examples? Hint: The neutralization reaction is the one in which an acid reacts with an equimolar amount of base to give salt and water. The example could be a reaction between any strong acid and a base. The sodium chloride formed is a result of neutralization reaction. What is Neutralisation […]
What is the difference between an emission and a reflection nebula quizlet?
What is the difference between an emission and a reflection nebula quizlet? What are emission nebulae? they glow when the atoms in the cloud are blast by light and radiation from a nearby massive star. Reflection nebula: only glow because they are reflecting light from a nearby star because it is made mostly of dust. […]
How can you tell if a rock is real?
What is the highest temperature of boiling point?
What is the highest temperature of boiling point? 100 °C Does glycerin have a higher boiling point than water? Glycerol boils at a whopping 290°C (554°F), far above the boiling point of water. Why is glycerin boiling point so high? Explanation: The answer is hydrogen bonding . And that intermolecular force is likely hydrogen-bonding, which […]
What causes low melting point?
What causes low melting point? There are intermolecular forces between small molecules. Intermolecular forces are much weaker than the strong covalent bonds in molecules. Relatively little energy is needed to overcome the intermolecular forces, so small molecular substances have low melting and boiling points. Which has low melting point? Helium What can affect melting point? […]