Which statement best describes what occurs during a chemical reaction? During a chemical reaction both the identity and the properties of a substance change. Chemical reaction between two substances occurs to form a new substance which is completely different. Therefore, it has different appearance and physical state as well as the chemical properties. Which statement […]
Why some elements are reactive?
Why some elements are reactive? The number of electrons in the outermost shell of an atom determines its reactivity. Halogens are highly reactive because they readily gain an electron to fill their outermost shell. Alkali metals are highly reactive because they readily lose the single electron in their outermost shell. Is S or O more […]
How do you know if starter motor is bad?
What are the limitations of valence bond theory?
What are the limitations of valence bond theory? Limitations of Valence Bond Theory The theory assumes that electrons are localized in specific areas. It does not give a quantitative interpretation of the thermodynamic or kinetic stabilities of coordination compounds. No distinction between weak and strong ligands. Why MOT is preferred over VBT? molecular orbital theory […]
What is the danger of replacing a circuit breaker or fuse with a larger rating?
What is the danger of replacing a circuit breaker or fuse with a larger rating? Since all fit the same socket, there is always the danger of replacing one fuse with a higher amperage than is safe. The higher-rated fuse will allow more current to flow than the wires can safely handle, causing overheating and […]
How do plants benefit from bacteria?
How do plants benefit from bacteria? Source. Bacteria benefit from the plant nutrients provided by the roots, but plants can benefit from their rhizobacteria as well. Bacteria known as Plant Growth-Promoting Rhizobacteria (PGPR) are diverse and represent a wide range of phyla. They also perform a wide variety of growth-promoting functions. What is relationship between […]
Is there a measure of sharpness?
Is there a measure of sharpness? There is no unit of sharpness but instruments are available to measure it. Those instruments provide accurate results with high precision. What is the sharpest knife in the world? Obsidian knife blades: overkill for slicing your sandwich. The thinnest blades are three nanometres wide at the edge – 10 […]
Is it bad to be in peak heart rate zone?
What is the most energy efficient plant?
What is the most energy efficient plant? sugar cane Why do plants not absorb all light? Plants and other photosynthetic organisms are largely filled with pigment protein complexes that they produce to absorb sunlight. The pigment in the lowest layer has to receive enough light to recoup its energy costs, which cannot happen if a […]
What are the 5 steps of fertilization?
What are the 5 steps of fertilization? 5 steps of the in vitro fertilization (IVF) process. Step 1: Medication. Step 2: Harvest the eggs. Step 3: Fertilization. Step 4: Embryo culture. Step 5: Embryo transfer. What are the main results of fertilization? The result of fertilization is a cell (zygote) capable of undergoing cell division […]