Is Melting exothermic or endothermic? Phases and Phase Transitions Phase Transition Direction of ΔH Fusion (Melting) (solid to liquid) ΔH>0; enthalpy increases (endothermic process) Vaporization (liquid to gas) ΔH>0; enthalpy increases (endothermic process) Sublimation (solid to gas) ΔH>0; enthalpy increases (endothermic process) What are two examples of exothermic? Examples of Exothermic Reactions any combustion reaction. […]
What happens if the solvent line reaches the top of your TLC plate?
What is the important of fuse?
What is the important of fuse? A fuse(s) is needed in any electrical system (AC or DC). These protection devices react to the amount of heat being produced by electricity passing through wires and/or components. They are used so as to protect wires and components from the extreme heat produced should there be an electrical […]
What are the types of digital divide?
What are the types of digital divide? However, two other types of divide will have much greater impact in the years to come. Stage 1: Economic Divide. In its simplest form, the digital divide is manifested in the fact that some people can’t afford to buy a computer. Stage 2: Usability Divide. Stage 3: Empowerment […]
How many possible molecules are there?
How many possible molecules are there? According to the Chemical Abstracts Service, CAS REGISTRY (SM) contains more than 90 million unique organic and inorganic chemical substances, such as alloys, coordination compounds, minerals, mixtures, polymers and salts, and more than 65 million sequences—more than any other database of its kind. What is the 2nd most common […]
What are the 7 health related fitness?
What are the 7 health related fitness? Health-related fitness refers to the components of fitness (cardiorespiratory endurance, muscular strength, muscular endurance, and flexibility) [7] that are affected by habitual physical activity and are related to various health outcomes. What are the 3 health related fitness test? There are five areas of health related fitness. They […]
What statement summarizes the difference between a law and a theory?
What statement summarizes the difference between a law and a theory? Which statement summarizes the difference between a law and a theory? A law describes natural phenomena, but a theory explains why those phenomena occur. The data from one particular experiment do not agree with a current theory. What is the best reason for the […]
Which best describes why diamond ring will sometimes sparkle different colors in normal white light?
Which best describes why diamond ring will sometimes sparkle different colors in normal white light? The ___________ of a wave is the bending of a wave as it passes through one medium to another medium. Which best describes why a diamond ring will sometimes sparkle different colors in normal white light? Constructive interference will occur, […]
Is walking resistance training?
Is walking resistance training? Walking is great cardio but you also need strength training to balance it out. While there are a lot of dynamic duos in the fitness world, one stands out as a low-impact, high-benefit option accessible to almost everyone — walking and strength training. Are squats resistance training? Squats are typically seen […]
When did Antonie van Leeuwenhoek die?
When did Antonie van Leeuwenhoek die? Au What did Leeuwenhoek call bacteria? animalcules Who found the first bacteria? Antoni van Leeuwenhoek How did Leeuwenhoek discovered sperm? His microscope helped him look at bacteria in ponds which he referred to as “animalcules.” While van Leeuwenhoek found the idea indecent, his scientific peers persuaded him to extend […]