How do you know if something is an ionic compound by the way it reacts? Do strontium, magnesium, and calcium form +2 ions? Explain. Why do nonmetals tend to form anions when they react to form compounds? Ionic compounds are made up of electrically charged particles, Why does not such ...
How can spectroscopy be used to identify the presence of specific elements in a substance? How do you know if something is an ionic compound by the way it reacts? Explain what will be the effect of annealing on metals and semi-crystalline polymers. Why do metals c...
We all know what it's like to have a gut feeling over something. You're faced with a choice, and without even thinking, you know one of them just feels right. Explaining and justifying these decisions can be incredibly challenging, though. People are often skeptical about trusting their gut...
I know I’m not alone in this struggle. Weight gain is a common symptom of thyroid disease. When people struggle with their weight, eventually they look to the thyroid, so in some ways we can thank our bodies for letting us know there is something going on that we need to focus on. ...
If you've read our main article on batteries, you'll know a battery is essentially a chemical experiment happening in a small metal canister. Connect the two ends of a battery to something like a flashlight and chemical reactions begin: chemicals inside the battery slowly but systematically ...
As an expression of surprise, what do you know attested by 1914. Don't I know it in the opposite sense ("you need not tell me") is by 1841. You never know as a response to something unexpected is attested from 1924.AdvertisementTrends...
When making a solution, it's handy to know if one thing will dissolve in another. After all, if somebody wants you to make them a liquid solution of one chemical, it won't make you look good if you bring them a beaker of liquid with sludge sitting at the bottom because you chose ...
When a cancer supplement has been around for years, especially if it is popular, you'll hear how it has beat cancer. But what you don't know is its success rate. It may have been successful only a very small percentage of the time. -- Given the number of people who die from cancer...
So, how much does it cost to develop an app? To answer this question, the development team needs to know what type of application you want to build. Obviously, there’s no one-fits-all solution, but each type of mobile app has an established set of features that will help the team ...
Leaving aside the complicated math, we know that blue moons occur seven times in 19 years. In contrast, supermoons are much more common. Due to the broad scope of their definition, it's possible to have as many as five consecutive supermoons in a single year, although four is more ...