give me answer fast ⬆️
Answers
iron oxygen hydrogen carbon dioxide
4. olyatomic ions are ions which consist of more than one atom. For example, nitrate ion, NO3-, contains one nitrogen atom and three oxygen atoms. The atoms in a polyatomic ion are usually covalently bonded to one another, and therefore stay together as a single, charged unit.
5. he mole (symbol: mol) is the unit of measurement for amount of substance in the International System of Units (SI). A mole of a substance or a mole of particles is defined as exactly 6.02214076×1023 particles, which may be atoms, molecules, ions, or electrons. In short, for particles, 1 mol = 6.02214076×1023
6. The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass. This implies that any pure sample of a compound, no matter the source, will always consist of the same elements that are present in the same ratio by mass.
7. The division of a sample of a substance into progressively smaller parts produces no change in either its composition or its chemical properties until parts consisting of single molecules are reached. Further subdivision of the substance leads to still smaller parts that usually differ from the original substance in composition and always differ from it in chemical properties. In this latter stage of fragmentation the chemical bonds that hold the atoms together in the molecule are broken.
- Molecular compounds are inorganic compounds that take the form of discrete molecules. Examples include such familiar substances as water (H2O) and carbon dioxide (CO2). 1: Carbon dioxide molecules consist of a central carbon atom bonded to 2 oxygen atoms. ...
- C2H6O: Alcohol. NaCl: Salt. C2H6O: Ethanol. C2H4O2: Vinegar. NH3: Ammonia. C2H4O2: Acetic Acid. C4H10: Butane.
- H2SO4 : Sulfuric Acid. CH4: Methane.
- C12H22O11: Sucrose. C3H8: Propane.
- NaHCO3: Baking Soda. N2O: Nitrogen. C6H8O7: Citric Acid. C8H18: Octane. C10H16O: Camphor.
hope this helps you.......