Is nuclear energy the cleanest? Nuclear is a zero-emission clean energy source. According to the Nuclear Energy Institute (NEI), the United States avoided more than 476 million metric tons of carbon dioxide emissions in 2019. That’s the equivalent of removing 100 million cars from the road and more than all other clean energy sources combined. […]
Which waves travel faster than light?
Which waves travel faster than light? The announcement he had made promised to overturn our understanding of the Universe. If the data gathered by 160 scientists working on the OPERA project were correct, the unthinkable had been observed. Particles – in this case, neutrinos – had travelled faster than light. Do thoughts travel faster than […]
Is Na2S basic or acidic?
Is Na2S basic or acidic? Sodium sulfide (Na2S) is an strong alkaline solution and is acidic in nature. Is sodium sulfide an antibiotic? Sodium sulfacetamide works by stopping the growth of certain bacteria on the skin that can lead to acne and worsen these other skin conditions. It belongs to a class of drugs known […]
What is the relationship between resistance and temperature?
What is the relationship between resistance and temperature? The more these atoms and molecules bounce around, the harder it is for the electrons to get by. Thus, resistance generally increases with temperature. For small temperature changes the resistivity varies linearly with temperature: r = ro (1 + a DT), where a is the temperature coefficient […]
Does boron have 13 valence electrons?
Does boron have 13 valence electrons? Boron is also the only metalloid in this group. The other four elements in the group—aluminum (Al), gallium (Ga), indium (In), and thallium (Tl)—are all metals. Group 13 elements have three valence electrons and are fairly reactive. All of them are solids at room temperature. Why is boron P […]
What is the mass of 62.0 mL of ethanol?
What if we destroy the moon?
What if we destroy the moon? If the moon got close enough to the Earth, around 18,000 km, it would pull apart and be shredded into a beautiful ring. And then the objects in the ring would enter the Earth’s atmosphere and rain down beautiful destruction for thousands of years. Who wanted to destroy the […]
What is the working principle of a fuel cell?
What is the working principle of a fuel cell? A typical fuel cell works by passing hydrogen through the anode of a fuel cell and oxygen through the cathode. At the anode site, a catalyst splits the hydrogen molecules into electrons and protons. What is the working of fuel cell? Fuel cells work like batteries, […]
What is cohesion and adhesion in water?
What is cohesion and adhesion in water? Cohesion: Water is attracted to water. Adhesion: Water is attracted to other substances. Adhesion and cohesion are water properties that affect every water molecule on Earth and also the interaction of water molecules with molecules of other substances. How do you remember cohesion and adhesion? This is because […]
What percent of the parent is left after 5 half lives?
What percent of the parent is left after 5 half lives? What percentage of the isotope would remain as parent material? If D=96.875%, then 5 half lives have passed. Why do radioisotopes differ in the length of their half lives? Variation in Half-Lives Different radioisotopes may vary greatly in their rate of decay. That’s because […]