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Molar mass is a?
The mass of one mole of substances
In a chemical reaction the total mass of the substances before the reaction is?
The mass of all substances before a chemical reaction is equal to the mass of the substance after the reaction. This is under the law of conservation of mass.
What happens to the overall mass of substances in an equation?
In a chemical equation, the overall mass of the substances remains constant, adhering to the law of conservation of mass. This means that the total mass of the reactants equals the total mass of the products. During a chemical reaction, atoms are rearranged to form new substances, but no atoms are created or destroyed, ensuring that mass is conserved throughout the process.
What happens to mass when substances go through a chemical change?
The total mass of products is unchanged from the total mass of the reactants, but the masses of particular substances among the reactants or products change.
When a candel burns the total mass of the candle and the oxygen equals the total mass of the gases and produced what law is this?
This is an example of the law of conservation of mass. It states that the total mass of substances before a chemical reaction is the same as the total mass of substances after the reaction.
When two substances react chemically to produce a new substance what is TRUE of the mass of the two substances compared to the mass of the new substance?
The mass of the two substances before the reaction is equal to the mass of the new substance after the reaction. This is in accordance with the law of conservation of mass, which states that matter can neither be created nor destroyed in a chemical reaction, only rearranged.
How to read the volume and mass of substances?
The volume and mass need to be calculated from measurements, but they are not read.
What is the ratio mass of a substance to the volume of the substances?
Its density.
What is always true of chemical reactions?
Chemical reactions involve the breaking and forming of chemical bonds, resulting in the rearrangement of atoms to form new substances. The total mass of the substances before a chemical reaction is equal to the total mass of the substances after the reaction, as dictated by the law of conservation of mass.
Why can mass be used to distinguish between equal volumes of two substances?
Mass can be used to distinguish between equal volumes of two substances because mass is a measure of the amount of matter in an object, while volume measures the space it occupies. Different substances have different densities, which is the ratio of mass to volume. Therefore, if two substances have the same volume but different masses, their densities will differ, allowing for distinction. This property is particularly useful in identifying substances and determining their purity.
What material has the mass of 147.7g?
Any object with a mass of 147.7 g is made of substances (material) with the same total mass.
What is the mass of 60 grams 0 grams and 2.2 grams?
The mass of 60 grams is 60 grams, the mass of 0 grams is 0 grams, and the mass of 2.2 grams is 2.2 grams.
