Why the orbit of Earth around the sun is not circular? The reason orbits are not circular is illustrated by Newton’s universal law of gravity, which postulates that the force of gravity weakens as the square of the distance between the two objects; the two objects being the planet and star or planet and natural […]

Do volcanic eruptions cause new land to form? New land is created in volcanic eruptions. These volcanoes formed from fluid lava (Figure below). The island grows as lava is added on the coast. New land may also emerge from lava that erupts from beneath the water. Do volcanoes form new rocks? When magma reaches the […]

Is Class 12 Chemistry difficult? The CBSE Class 12 Chemistry board exam was held today, on March 7, and Science stream students from all over India appeared for the same in various board exam centres across India. The Class 12 Chemistry paper is quite dreaded as the syllabus is long and many have problems with […]

Is rubidium similar to potassium? Rubidium is very similar to potassium, and tissue with high potassium content will also accumulate the radioactive rubidium. Why does potassium have K as a symbol? The name is derived from the english word potash. The chemical symbol K comes from kalium, the Mediaeval Latin for potash, which may have […]

How do scientists use radioactive elements to determine the actual age of fossils? Radiometric dating. Geologists use radiometric dating to estimate how long ago rocks formed, and to infer the ages of fossils contained within those rocks. The universe is full of naturally occurring radioactive elements. Scientists date igneous rock using elements that are slow […]

Which acid is present in rancid butter? Butyric acid What is the formula mass of butyric acid c4h8o2 responsible for the odor of rancid butter? Butyric acid appears as a colorless liquid with a penetrating and unpleasant odor. Flash point 170°F….3.1Computed Properties. Property Name Property Value Reference Monoisotopic Mass g/mol Computed by PubChem 2.1 (PubChem […]

What are some disadvantages of a series circuit? The first disadvantage is that, if one component in a series circuit fails, then all the components in the circuit fail because the circuit has been broken. The second disadvantage is that the more components there are in a series circuit, the greater the circuit’s resistance*. Why […]

How does outside air temperature affect AC? The hotter the outside temperatures, the harder your AC will have to work to achieve your desired indoor temperature. It then requires more energy to perform and its efficiency lowers. Air conditioners are assigned a SEER (Seasonal Energy Efficiency Ratio) that indicates the level of efficiency you can […]

Does the molarity of the solution change with the change in temperature? As molarity is dependent on volume (mol/L) and volume rises as temperature does, molarity is inversely proportional to temperature. As temperature increases, volume also increases, which means that it will decrease the number of moles per litre. So, molarity decreases as the temperature […]

What are the shorter alkane chain compounds used for? The shorter chain hydrocarbons condense in the trays nearer to the top of the tower, where it is cooler, because they have lower boiling points. Some of the products produced are alkenes. These can be converted to other compounds very easily and are therefore very useful. […]