Two industrial processes that involve heating are • extracting iron from its ore using a blast furnace, • making lime. In which of these processes is calcium carbonate used?
“An entrepreneur isn’t someone who owns a business. It’s someone who makes things happen.” – Tim Ferris
“Whatever the mind can conceive and believe, it can achieve.” ― Napoleon Hill, Think and Grow Rich: A Black Choice
“Education: that which reveals to the wise, and conceals from the stupid, the vast limits of their knowledge.” ― Mark Twain
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
“Don't blow off another's candle for it won't make yours shine brighter.” ― Jaachynma N.E. Agu, The Prince and the Pauper
The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent
“The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.” – Carl Sagan
“The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.”
“The only way of discovering the limits of the possible is to venture a little way past them into the impossible.” ― Arthur C. Clarke
“To live is the rarest thing in the world. Most people exist, that is all.” ― Oscar Wilde
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
Inorganic chemistry is a branch of chemistry that focuses on the study of inorganic compounds, which are compounds that do not contain carbon-hydrogen (C-H) bonds. Instead, inorganic chemistry primarily deals
In order to succeed, your desire for success should be greater than your fear of failure. ― Bill Cosby
Acids can be prepared through various methods depending on the specific acid required and the..
Find questions related to air and water chemistry in the slides contained in this post.
A reactivity series (or activity series) is an empirical, calculated, and structurally analytical progression of a series of metals, arranged by their "reactivity" from highest to lowest.
“Books permit us to voyage through time, to tap the wisdom of our ancestors. The library connects us with the insight and knowledge, painfully extracted from Nature, of the greatest
Force in physics is the push or pull on an object that causes it to change its velocity or direction123. Force is a vector quantity, meaning it has a magnitude
“Learning is an ornament in prosperity, a refuge in adversity, and a provision in old age.” ― Aristotle