Kevin Worksheet Description The worksheet presents a variety of questions aimed at honing students’ skills in formulating word equations in chemistry. It is a great starting point for understanding chemical reactions. Most importantly, certain questions in the worksheet have been designed to help students interpret what is taking place in chemical reaction scenarios and come up … Read more
In the previous section, we described chemical changes as those in which two substances react to form one or more new substances or those in which one substance changes to two or more new substances. In chemistry, such changes are referred to as chemical reactions. For chemists to describe or explain chemical reactions to … Read more
Over the past few years, denim jeans manufacturers have expanded their horizons by producing jeans in a wide range of styles—from low-rise, slim-fit, jeggings, and kicked-flare, to lower-waist jeans, among others. One particular style that has experienced a resurgence in popularity every now and then is acid-washed jeans. The style of denim jeans has remained … Read more
The Soap Lady and the Soap Man are two notable examples of mummified remains that have captured the attention of scientists, historians, and the public alike due to their unique preservation as “soap mummies.” Both were discovered by construction workers in the same graveyard near a Philadelphia train station in 1875 during routine infrastructural changes … Read more
Earth is not the only planet where acids are found. Scientists have proved that some planets do contain acids in greater abundance than Earth. One of these planets is Venus. While Earth’s atmosphere is composed of Nitrogen (79%), oxygen (20%), and other gases (1%), Venus’ atmosphere is made up of thick clouds of nitrogen, carbon … Read more
We have already learned about the physical properties of acids in this previous post. Let’s now focus on the chemical properties of acids (or how they react with other substances). 1. Reaction of Acids with Metals Acids react with metals to form a salt and hydrogen gas. Acids contain chemically bound hydrogen, which can be … Read more
In the previous post, we mentioned that one of the properties of acids is that they have sour tastes, while bases have bitter tastes. Using taste to classify substances as acids or bases is not an accurate method. It is not safe either due to the potential harm that acidic or basic substances can cause … Read more