Properties that can be determined without changing the composition of a substance are referred to as physical properties. Characteristics such as melting point, boiling point, density, solubility, color, odor, etc. are physical properties. What kind of property is conductivity? Conductivity involves measuring the ability of a substance to conduct anRead More →
Chemical Reactions take place in our body too. … For example, the whole digestion process involves chemical reaction of acids and the food. During digestion, the food is broken down in to smaller molecules. The salivary glands in our mouth release digestive enzymes which help in the breakdown of food.Read More →
Explanation: It is a physical change because it is going from the liquid phase to the gas phase. It is not a chemical change because it is still made of two hydrogen atoms and an oxygen atom. Physical. Is evaporating alcohol a physical P or a chemical C change? TheRead More →
The starting substances and the substances produced have different physical and chemical properties. For example, when brownie batter bakes, a chemical change occurs. Many of the substances in the baked brownies are different from the substances in the batter. Is frying an egg a chemical change? When chemical bonds areRead More →
The flame photometric detector (FPD) allows sensitive and selective measurements of volatile sulphur and phosphorus compounds. … A photomultiplier tube measures the characteristic chemiluminescent emission from these species. Which is not interference of flame photometer? The tube used (green-stoppered tube) contains a minuscule concentration of lithium and sodium, which doesRead More →
Enantiomers are equal in all their physical properties except for their optical rotation, as they rotate the plane of polarized light by equal amounts in opposite directions. They differ only in their direction of optical rotation. … Does isomerism differ in both physical and chemical properties? Stereogenic Atoms When theyRead More →