Enzymes are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different
Motion involves a change in the position of an object over time. Motion influences when objects move and the forces necessary to make them move.
Procurement is the process of finding, acquiring, and buying goods, services, or works from an external source, often through a competitive bidding or tendering process. This process is an essential
A mixture is separated using the apparatus shown. What is the mixture? A aqueous copper chloride and copper B aqueous copper chloride and sodium chloride C ethane and methane D
Solubility is a measure of the ability of a substance (solute) to dissolve in a given solvent under specific conditions, typically at a certain temperature and pressure. It is expressed
Temperature is a physical quantity that expresses quantitatively the perceptions of hotness and coldness. Temperature is measured with a thermometer. Thermometers are calibrated in various temperature scales that historically have
In the Periodic Table, how does the metallic character of the elements vary from left to right across a period? A It decreases. B It increases. C It increases then
Thermodynamics is a fascinating field that deals with the principles governing energy and heat transfer. Here are 20 discussion questions on thermodynamics to stimulate thoughtful conversations and explore this subject
Electrical insulators, also known as dielectrics, are materials that do not conduct electricity well. They have high electrical resistance and are used to prevent the flow of electric current. Insulators
Should schools teach financial literacy as part of the curriculum? Is the use of technology in classrooms more helpful or harmful to students? Should schools have mandatory drug testing for
Which statement is not correct? A-> Petroleum is a mixture of hydrocarbons. B ->The main constituent of natural gas is ethane. C-> The naphtha fraction of petroleum is used for
Pressure in physics is defined as the force per unit area applied to an object's surface. It is a fundamental concept in physics and has various applications in different fields.
Density (volumetric mass density or specific mass) is the substance's mass per unit of volume.
John takes t minutes to cycle to school. a It takes him three times as long to walk to school. Write down, in terms of t, how long it takes
The Law of Flotation, also known as Archimedes' principle, is a fundamental principle in physics and fluid mechanics. It explains how and why objects float or sink in a fluid,
Why do tropical cattle have a large dew lap? A. To absorb excess heat from animal’s body. B. To increase surface area for heat loss. C. To fan the animal
Probability is a measure that quantifies the likelihood of a specific event occurring. It's a branch of mathematics that deals with analyzing and predicting uncertain events by assigning a numerical
Prove De Morgan's laws for sets: (A ∪ B)' = A' ∩ B' and (A ∩ B)' = A' ∪ B'.
The kinetic theory of gases is a simple, historically significant classical model of the thermodynamic behavior of gases, with which many principal concepts of thermodynamics were established.
Synthetic polymerization refers to the process of chemically synthesizing polymers, which are large molecules composed of repeating subunits called monomers.