Give an example of the law constant composition?
for example in water (H2O), 2 hydrogen atoms combine with 1 oxygen atom so their mass ratio is 2;16 or 1;8, that means 1g hydrogen always requires 8g of oxygen to form the 9g of water.
How does the atomic theory of matter explain the law of conservation of mass and the law of constant composition?
Each atom of a particular element has a constant (average) weight, and in chemical reactions, the numbers and types of atoms in the reactants must be the same as the numbers and types of atoms in the products. This explains the law of the conservation of mass. Each molecule of a compound or polyatomic element is composed of a fixed number of one or more particular kinds of atoms; this explains the law of constant…
Constant velocity is the Newton's first law. A real life example is Sunlight, an example of constant velocity, light traveling at the constant speed of light.. On earth, an ice skater gliding or a hockey puck sliding on ice is a close example of nearly constant velocity. A stable oil drilling platform is close to zero constant velocity.
Charle's law states At constant pressure, the volume of a given mass of an ideal gas increases or decreases by the same factor as its temperature increases or decreases. it is governed by the equation V/T=k V= volume T = temperature k = some constant example isobaric expansion of gas in a steam piston
What does the law of constant proportions say about a reaction that has too much of one of the reactants?
In chemistry, the law of definite proportions, sometimes called Proust's Law, states that a chemical compound always contains exactly the same proportion of elements by mass. An equivalent statement is the law of constant composition, which states that all samples of a given chemical compound have the same elemental composition by mass. For example, oxygen makes up about 8/9 of the mass of any sample of pure water, while hydrogen makes up the remaining 1/9…
Charles' Law says that as pressure on a gas decreases, its volume increases. Charles' Law is an example of an inverse relationship.t It is not Charle's law It is Boyle's law Charles law states at constant volume, pressure is proportional to kelvin temperature And at constant pressure volume is proportional to kelvin temperature But Boyle's law states that at constant temperature pressure is inversely related to volume
Whenever talking about a molecule of water, there is ALWAYS two atoms of Hydrogen and one atom of Oxygen. In a hydrate, water is part of the crystals. When a hydrate is heated, the composition of it is changed, because water is released. And as soon as the composition is changed, it is a new substance with new properties.
Hooke's Law can be stated as: F = -kx Where x is the displacement, k is some constant, and the negative sign means that the force is in a direction opposite to the displacement. Solving for the constant k gives: k = -F/x In SI, this would give it units of Newton / meter, but any other convenient unit can be used, for example, Newton / centimeter.