What country has contributed the most to science?
| Country | H index | |
|---|---|---|
| 1 | United States | 2386 |
| 2 | China | 884 |
| 3 | United Kingdom | 1487 |
| 4 | Germany | 1298 |
Who invented modern chemistry?
Robert Boyle
What is the most important discovery ever?
What Are The Greatest Scientific Discoveries Of All Time?
- Genome editing.
- CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats)
- RNA-sequencing.
- Penicillin.
- The molecular structure of DNA.
- Electricity.
- Levodopa.
- Painkillers and anaesthetic.
How does chemistry affect my life?
The industrial applications of chemistry directly affect our daily lives—what we eat, what we wear, our transport, the technology we use, how we treat illnesses and how we get electricity—to name just a few. Research is constantly deepening our understanding of chemistry, and leading to new discoveries.
What is the role of chemistry in society and technology?
Chemistry is the key to eradicating disease and reducing poverty. Chemical research and technology can provide clean water and nutritious food, meet energy demands, and help lead to sustainable development everywhere. Chemistry brings a wide range of goods and functions to everyone and thus is vital to our democ- racy.
What are the 5 chemical reactions?
The five basic types of chemical reactions are combination, decomposition, single-replacement, double-replacement, and combustion. Analyzing the reactants and products of a given reaction will allow you to place it into one of these categories. Some reactions will fit into more than one category.
Is soap and water a chemical reaction?
The mixing of soap and water is a physical rather than a chemical reaction.
What is the chemical formula of soap?
The exact chemical formula is C17H35COO- plus a metal cation, either Na+ or K+. The final molecule is called sodium stearate and is a type of salt. Depending on the metal cation, soaps are either potassium salts or sodium salts arranged as long-chain carboxylic acids.
Are bubbles a chemical reaction?
The formation of bubbles, or rather a gas, is another indicator of a chemical reaction taking place. When bubbles form, a temperature change could also be taking place. Temperature change and formation of bubbles often occur together. For example, in the following image, one can see a gas spewing.
Is soap a solute?
Answer: The water is the solvent and the soap is the solute.
What are the 5 examples of solute?
Solute Examples
| Solute | Solution | Solvent |
|---|---|---|
| Salt | Seawater | Water |
| Sugar, dissolved carbon dioxide | Soda | Water |
| Oxygen, water vapor, carbon dioxide, argon | Air | Nitrogen |
| Chromium | Stainless Steel | Iron |