Table of Contents
- 1 Does mass of reactants affect reaction rate?
- 2 What happens to the mass of the reactants during a chemical change?
- 3 What happens during a chemical reaction where do the reactants go and where do the products come from?
- 4 Why does the mass change in a chemical reaction?
- 5 What is the relationship between the reactants and the products?
Does mass of reactants affect reaction rate?
Reaction Rates Smaller reactant particles with less mass increase the chances for collisions, which increases the reaction rate.
What is the relationship between the mass of the reactants and the mass of the products?
The law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products.
What happens to mass in a chemical equation?
No atoms are added or taken away from the system, so the mass stays the same. Even in a chemical reaction when atoms interact and create new products, mass is conserved. This is because the new substances created are composed of atoms that were present in the reactants.
What happens to the mass of the reactants during a chemical change?
One of these is called the law of conservation of mass , which states that during a chemical reaction, the total mass of the products must be equal to the total mass of the reactants. In other words, mass cannot be created or destroyed during a chemical reaction, but is always conserved.
What factors affect the rate of a chemical reaction?
The factors that affect reaction rates are:
- surface area of a solid reactant.
- concentration or pressure of a reactant.
- temperature.
- nature of the reactants.
- presence/absence of a catalyst.
How does changing the amount of reactants affect the amount of products in a reaction?
Products are made from the reactants, so adding more reactants will produce more of the products. The important point for students to realize is that atoms from both reactants are necessary to produce the products.
What happens during a chemical reaction where do the reactants go and where do the products come from?
In a chemical reaction, the atoms and molecules that interact with each other are called reactants. No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.
Why is the mass of a reaction the same at the end of reaction as it was as the beginning?
According to the Law of Conservation of Mass, mass cannot be created or destroyed. Therefore in any chemical reaction the mass of the products must equal the mass of the reactants.
How does mass decrease in a chemical reaction?
Mass is never lost or gained in chemical reactions. We say that mass is always conserved. In other words, the total mass of products at the end of the reaction is equal to the total mass of the reactants at the beginning. This is because no atoms are created or destroyed during chemical reactions.
Why does the mass change in a chemical reaction?
The mass in a chemical reaction is constant in a closed system. It is important to remember that mass changes only occur because a gas is being released into the atmosphere, or because a gas from the atmosphere is being used as a reactant – no atoms are being created or destroyed, just rearranged.
Does mass change in a chemical change?
The law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed. For example, the carbon atom in coal becomes carbon dioxide when it is burned. The carbon atom changes from a solid structure to a gas but its mass does not change.
How do you find the mass of the reactants and products?
The chemical equation does not directly tell you anything about the masses of the reactants and products. However, by converting the known mole quantities to mass, the mass relationships become obvious. Recall that moles are converted to mass by multiplying by the molar mass.
What is the relationship between the reactants and the products?
The total mass of the reactants is greater than the total mass of the products. The total mass of the reactants is less than the total mass of the products. Matter is not changed. Q. The substances listed on the left side of a chemical equation are the
How do you calculate the molar mass of a reaction?
Step 1: Write out the reaction as an equation with the correct chemical formulas. Step 2: Balance the equation using stoichiometric coefficients. Step 3: Work out the molar mass of the substance you know the mass of. In this example that would be sodium nitrate. Reminder: Molar mass is the mass of one mole of a substance.
What happens to the reactants at the end of a chemical reaction?
Consequently, none of the reactants was left over at the end of the reaction. This is often desirable, as in the case of a space shuttle, where excess oxygen or hydrogen was not only extra freight to be hauled into orbit but also an explosion hazard.