atom covalently bonded to some number of terminal oxygen atoms. At least one of those oxygen atoms is bonded to a hydrogen atom, which provides acidity in an aqueous solution through "O-H" bonds. Each oxyacid has a corresponding anhydrous (anhydride) form that does ...
With the rapid development of science and technology, we don’t know how different our life will be in the future.1. At first we think about human relationships. In the year 2050, we will use computers almost every day. We will be making new friends through the Internet — even our hus...
The FDA does not consider bottled water to be a risky food product for at least a couple of reasons: First, since the water's source must be protected in the first place, the water shouldn't be susceptible to many of the harmful contaminants found in surface and ground water, which muni...
Holding the rise of global temperatures to 1.5 degrees Celsius above preindustrial averages, an ambition specified in the Paris Agreement, will require cutting net emissions of greenhouse gases roughly in half by 2030 and to zero by 2050.
you might think they don't.But life on this planet depends on the ocean.It covers almost three-quarters of the planet and holds 97 percent of Earth's water.The phytoplankton (浮游植物)that live on the oceans' surface produce half of the oxygen in the atmosphere.Oce...
lots of work to prove that helping others does have a great effect on a person’s happiness. Even though we usually feel the urge to compete with other people, taking time to assist others can be very beneficial to us. The key to internal joy and happiness is simply helping those in ...
How Often Does It Rain During Thailand's Rainy Season? Mention "rainy season" or "monsoon season" and most people imagine endless downpours. In Thailand, it usually means "raining more often" instead of constant rain. Early in the season, at least half the days are dry. When it rains,...
Does X bakery have gluten-free options? Top 10 bakeries in X city Where you post matters Not only do you have to think about what you’re posting, but you also have to consider where you’re posting content. What platform is going to house what you’ve created?
“There’s a byelaw that allows certain fishing activity out there, but it takes the form of strings of lobster pots and so on,” he says. The VHF radio crackles into life. “Bear with me a second,” he says. “What’s your message, over?” “Good afternoon, we’re leaving the ...
On the left side of the timeline, we use the term pre-model (Justi and Gilbert 1999a) to indicate that an acid-base classification does not have to be explanatory. In order to understand scientific models, we need to appreciate that they have been constructed to explain and predict ...