How do you tell if it is exothermic or endothermic?

How do you tell if it is exothermic or endothermic? An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings.” What does it mean when entropy is negative? A negative change in entropy indicates that the disorder of an isolated system has […]

What are the 4 properties of metals?

What are the 4 properties of metals? Properties of metals high melting points. good conductors of electricity. good conductors of heat. high density. malleable. ductile. What are the six properties of metals? Metals Lustrous (shiny) Good conductors of heat and electricity. High melting point. High density (heavy for their size) Malleable (can be hammered) Ductile […]

What was the Beatles last hit song?

What was the Beatles last hit song? The Long And Winding Road How do I know if my Abbey Road is original? Best way to tell if a record is genuine, firstly is by the Matrix number. Its engraved very small near to the label. It should be printed as if its done by hand […]

Which orbitals Cannot form a pi bond?

Which orbitals Cannot form a pi bond? dx2−y2+py sideways overlapping does not form π-bond as the two orbitals do not have proper orientation for the overlap. Was this answer helpful? Can pi bonds be formed in absence of sigma bonds? Yes, there exists pi bonds without coexisting sigma bonds. Here both the bonds of the […]

Where is productive efficiency?

Where is productive efficiency? In long-run equilibrium for perfectly competitive markets, productive efficiency occurs at the base of the average total cost curve — i.e. where marginal cost equals average total cost — for each good. What is meant by productive efficiency? Production efficiency is an economic term describing a level in which an economy […]

Can a 7 year old start her period?

Can a 7 year old start her period? Now the average age for a first period is closer to 12, with one University of Cincinnati study reporting that about 10 to 15 percent of girls enter puberty at age 7 or younger, a phenomenon known as precocious puberty. This is up from just 5 percent […]

What is the highest frequency of sound?

What is the highest frequency of sound? 20 kHz Can high frequency sounds kill you? The general consensus is that a loud enough sound could cause an air embolism in your lungs, which then travels to your heart and kills you. Alternatively, your lungs might simply burst from the increased air pressure. High-intensity ultrasonic sound […]

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