Q. Write short note on the following:
Law of conservation of mass, Law of constant proportions, Atoms, Compound & Ions
Q. Explain the significance of law of constant proportions.
Q. State & explain Avogadro's Law
Q. Explain How atoms exist?
Q. Are atoms fundamental unit of matter? If yes, how? If no, why?
Answers
Answer:
Explanation:
The law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed. ... The carbon atom changes from a solid structure to a gas but its mass does not change.
Definitions of law of constant proportion. (chemistry) law stating that every pure substance always contains the same elements combined in the same proportions by weight. synonyms: law of definite proportions.
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.
Avogadro's law, a statement that under the same conditions of temperature and pressure, equal volumes of different gases contain an equal number of molecules.
Atoms exist in free states in the form of molecule. ... Molecules may be formed by the combination of atoms of two or more different elements. For example molecule of water. It is formed by the combination of two atoms of hydrogen and one atom of oxygen.
Overview of Elements and Atoms. ... In turn, the atom is the fundamental unit of matter…, that is, of an element. The number of positively charged protons and neutral neutrons in an atomic nucleus account for most of the mass of an atom.
Explanation:
Q. This law states that if a compound is broken down into its constituent elements, the masses of the constituents will always have the same proportions, regardless of the quantity or source of the original substance.
Q. 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.
Q. Avogadro's law states that "equal volumes of all gases, at the same temperature and pressure, have the same number of molecules." For a given mass of an ideal gas, the volume and amount (moles) of the gas are directly proportional if the temperature and pressure are constant.
Q. Atoms exist in free states in the form of molecule. Molecule may be formed by the combination of two or more similar atoms of an element, such asoxygen molecule is formed by the combination of two oxygen atoms, molecule of hydrogen which is formed by the combination of two hydrogen atoms.
Q. In turn, the atom is the fundamental unit of matter…, that is, of an element. The number of positively charged protons and neutral neutrons in an atomic nucleus account for most of the mass of an atom. Each negatively charged electron that orbits a nucleus is about 1/2000th of the mass of a proton or neutron.
please turttlerabbitkim mark my answer brainlist
and please vote this answer