619011
| Question | Answer |
| What is an element? | Identical atoms |
| What is a compound? | Two or more elements chemically combined |
| H = | Hydrogen |
| He = | Helium |
| Li = | Lithium |
| Be = | Beryllium |
| B = | Boron |
| C = | Carbon |
| N = | Nitrogen |
| O = | Oxygen |
| F = | Fluorine |
| Ne = | Neon |
| K = | Potassium |
| Mg = | Magnesium |
| Al = | Aluminium |
| Si = | Sillicon |
| P = | Phosphorus |
| S = | Sulfur |
| Cl = | Chlorine |
| Ar = | Argon |
| Na = | Sodium |
| Ca = | Calcium |
| Sc = | Scandium |
| Ti = | Titanium |
| V = | Vanadium |
| Cr = | Chromium |
| Mn = | Manganese |
| Fe = | Iron |
| Co = | Colbalt |
| Ni = | Nickel |
| Cu = | Copper |
| Zn = | Zinc |
| Ga = | Gallium |
| Ge = | Germanium |
| As = | Arsenic |
| Se = | Selenium |
| Br = | Bromine |
| Kr = | Krypton |
| What is the chemical compound of Methane? | CH4 |
| What is the chemical compound of Water? | H2O |
| What is the chemical compound of Carbon Dioxide? | CO2 |
| What is the chemical compound of Ethylene? | C2H4 |
| What is the chemical compound of Sulfur Dioxide? | 1 Sulfur, 2 Oxygen |
| What is the chemical compound of Nitrogen Dioxide? | 1 Nitrogen, 2 Oxygen |
| What is the chemical compound of Carbon Monoxide? | 1 Carbon, 1 Oxygen |
| What is the chemical compound of Ammonia? | 1 Nitrogen, 3 Helium |
| What is the chemical compound of Hydrochloric Acid? | 1 Hydrogen, 1 Chlorine |
| What is the chemical compound of Nitric Acid? | 1 Hydrogen, 3 Nitric Oxide |
| What is the chemical compound of Sulfuric Acid? | 2 Hydrogen, 4 Sulfate |
| What is the chemical compound of Methane? | 2 Carbon, 1 Hydrogen |
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