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After the law of mass conservation the mass of reactants is equal to the mass of products.
This is a extremely important law in chemistry.
The Russian chemist Mikhail Lomonosov described this principle in 1748.
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If a single atom of an unidentified element has a mass of 3.818x10-23 g What is the element?
The mass number can be found by multiplying the mass of a single atom by Avogadro's number, that is 6.022 X 1023. In this instance, the product is 23.0, and the element is probably sodium, which has this gram atomic mass. mass number is less than 1, which does not correspond to any real, stable atom. The element could conceivably be a rare isotope of neon or magnesium.
Is neon a synthetic element?
Neon is an element not a compound coz a compound is two elements or more chemically joinning together an element is simple substance that cant be broken down and neon is an element on the periodic table.... An element, it is in the noble gases column, meaning that it is a very unreactive, monatomic gas. It has a full outer shell and has little desire to react . Its chemical symbol is NE. It's atomic number is 10, and mass no. 20. It's relative atomic mass is 20.18. It's electron configuration is 2.8
What is the atomic mass for magnesiam?
Magnesium is a meta element. Atomic mass of it is 24.
What element has the volume of 43 ml and the mass of 305.859?
There is no element with that atomic mass, the element that comes the closest is Ununbium with an atomic mass of 277.0.
How would we know how many moles are in a certain element?
number of moles = mass of the element/molar mass of the element
When two elements chemically react the mass of the product is?
When two elements chemically react, the mass of the product is equal to the sum of the two masses of the two elements.
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?
Same. Mass is not changed.
The tendency of an element to react chemically is closely related to what?
its Atomic Mass.
Why are different masses of each element required to react with the same amount of hydrogen?
Each element has a different molar mass and Molarity, using stoichiometry the conversion of molar mass can explain why.
Which of Jhon Daltons statements about the atom was proven false because of the discovery of isotopes?
Dalton said that all atoms of one element are identical. they are chemically identical but not identical in mass. he did not know of isotopes, which are chemically identical atoms with different numbers of neutral neutrons. ex: all carbon atoms act the same chemically but some mass at 12, others at 14.
What is the key difference between an element and a compound?
An element is a homogeneous material having a definite mass, where as a compound is also a homogeneous material, an out come of chemically bonded, mechanically inseparable, involving 2 or more elements.
Does The element with the largest subscript in a formula have the largest percent by mass in the compound?
Sometimes, but not necessarily: The largest percent by mass in a compound is that of the element for which the product of the subscript and the atomic weight is highest. For example, there is more carbon than hydrogen by mass in CH4.
What are atoms called which cannot be chemically broken down?
Elements are substances made of identical atoms which cannot be broken down to other substances. Matter is anything that occupies space and has mass.
Carbon 12 and carbon 13 are different in the number of what?
Neutrons. The number of protons is ALWAYS the same for the same element. Different forms of the same element, called isotopes, differ in the number of neutrons only and will react chemically in exactly the same way.
If a single atom of an unidentified element has a mass of 3.818x10-23 g What is the element?
The mass number can be found by multiplying the mass of a single atom by Avogadro's number, that is 6.022 X 1023. In this instance, the product is 23.0, and the element is probably sodium, which has this gram atomic mass. mass number is less than 1, which does not correspond to any real, stable atom. The element could conceivably be a rare isotope of neon or magnesium.
When 53.6 grams of calcium carbonate react with plenty of aluminum fluoride how many grams of each product can be produced?
mass of CaF3 = 61.96g mass of Al2CO3 =61.104 g
What determines an element's mass?
the mass of protons + the mass of neutrons = mass of the element
