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If one knows the mass and molar mass of reactant A and the molar mass of product D in a chemical reaction one can determine the mass of product D produced by using the?
Balanced chemical equation along with the stoichiometric ratios derived from that chemical reaction. A + B --> 2C mass of A * 1/molar mass of A = moles of A Moles of A * 2 moles of C/mole of A = moles of C Moles of C * molar mass of C = mass of C Also, you must think about limiting reagents, because if there is not enought reactant B to react with the amount of reactant A then the amount of reactant B will limit the production of product C!
How does the law of conservation of mass apply to a chemical reaction?
The law of conservation of mass states that matter is neither created nor destroyed in a chemical reaction (in a nuclear reaction it is a different matter). Therefore the total mass of the reactants equals the total mass of the products. This law is hard to grasp by some since some reactions are gas creating reactions, and most reactions occur in open systems; Therefore, the gas escapes and cannot be weighed properly, but mass is still conserved.
Why is the total mass of the products of a chemical reaction is equal to the total mas of the reactants?
This isn't true. The mass of reactants will equal mass of products in a closed system where gasses cannot enter or escape, but the mass can decrease if a gas is formed that escapes into the atmosphere (for example, hydrogen from your reactants is transformed into hydrogen or oxygen gas which escape into the room) or even INCREASE of the reaction draws in gas from the atmosphere which is incorporated into the product. There might even be an increase in mass if water vapor from the air ends up entering into the reaction. The equation for the reaction will always balance because of conservation of mass, but where that mass ends up can mean that the final weights to NOT remain the same. A closed system doesn't allow for entry or exit of additional mass, but an open system might.
Is cutting up a pear a chemical reaction?
No, cutting up a pear is a physical change, not a chemical reaction. Chemical reactions involve the breaking and forming of chemical bonds to create new substances, while cutting a pear only changes its physical appearance.
What happens to atoms when chemical reaction occurs?
An atom is a particle which makes up an element. When an atom reacts with another atom, they create a chemical bond. When this happens, the elements made from these atoms make a compound. Example: 2 Hydrogen atoms + 1 Oxygen atom ---> water (H2O)
What states that the mass of what you end up with after a chemical reaction is the same you start with?
The law of conservation of mass states that mass is neither created nor destroyed during a chemical reaction. This means that the total mass of the reactants in a chemical reaction will be equal to the total mass of the products formed.
Does vinegar and baking soda create a big chemical reaction?
it makes a chemical reaction but not a big one. it just bubbles up and then stops.
What does the law of conservation of mass state that cannot be created or destroyed during a chemical reaction?
The law of conservation of mass (or matter) states that mass (or matter) cannot be created or destroyed during a chemical reaction. *Matter is anything that has mass and takes up space, so a lot of scientists call this the law of conservation of matter.
What can a chemical reaction be speeded up by?
A catalyst can speed up a chemical reaction.
What is a step that makes up a reaction?
A step that makes up a reaction is a specific molecular event that occurs during the chemical transformation of reactants into products. Each step involves the breaking and formation of chemical bonds between atoms to create new substances. These individual steps collectively make up the overall reaction mechanism.
What can speed up a chemical reaction by decreasing?
chemical reaction
What is chemical reaction in an enzyme?
to speed up a chemical reaction
Matter can be created during a chemical reaction?
No, matter is not created or destroyed in a chemical reaction. The total mass of the reactants before a reaction is equal to the total mass of the products after the reaction. This is known as the law of conservation of mass.
What happens to the mass of a glowstick when it lights up?
The mass of a glowstick remains the same when it lights up. The glowstick undergoes a chemical reaction that produces light, but the total mass of the components inside the glowstick does not change.
What is lavoisier's law of conservation of metter?
Antoine Lavoisier's Law of Conservation of Matter states that the total mass of the products of a chemical reaction is always the same as the total mass of the starting materials used up in the reaction.
What is lowered to speed up a chemical reaction?
Activation energy is lowered to speed up a chemical reaction.
How do you make a chemical reaction that makes stuff blow up?
you need to add baking soda(a base) and vinegar(an acid)
