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A composition of an element is only fixed if it doesn't radioactively decay, chemically react, interact with a fundamental particle, and no external energy is introduced into the system. These four things happen quite a bit though and if they don't the element stays the same because it is at the lowest energy state it can obtain.
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What is fixed composition?
Fixed composition refers to a mixture where the components are present in a specific and unchanging ratio. This means the proportion of each component in the mixture remains constant regardless of the amount of the mixture present. Fixed composition is often found in chemical compounds where the elements are combined in a defined ratio.
Is all composition of a compound fixed but that of a mixture is not true or false?
False. The composition of a compound is fixed, meaning it always contains the same elements in the same proportions. In contrast, the composition of a mixture can vary, as it is a physical combination of substances that can be in different proportions.
Is lead nitrate an element mixture or a compound?
Lead nitrate is a compound, as it is composed of lead, nitrogen, and oxygen atoms that are chemically bonded together in a specific ratio. It is not considered an element or a mixture because it is a pure substance with a fixed composition.
What is the percent composition of ammonium carbonate?
Ammonium carbonate has the formula (NH4)2CO3. To calculate the percent composition, you first find the molar mass of each element and then divide the molar mass of each element in the formula by the formula mass of the compound and multiply by 100 to get the percentage.
What mineral accounts for 35 percent of the Earth's composition?
Iron is the mineral that accounts for approximately 35% of the Earth's composition. It is a crucial element in the Earth's core and mantle, as well as in the composition of rocks and minerals throughout the planet.
If the composition of a material is fixed?
If the composition of a material is fixed, it means that the material is made up of a set combination of elements in specific proportions. This fixed composition gives the material its unique properties and characteristics, which remain consistent as long as the composition is maintained.
Why the composition of an element is fixed?
A composition of an element is only fixed if it doesn't radioactively decay, chemically react, interact with a fundamental particle, and no external energy is introduced into the system. These four things happen quite a bit though and if they don't the element stays the same because it is at the lowest energy state it can obtain.
What is a mineral that is only made up with one element?
A mineral is defined as a compound having a fixed chemical composition ... Thus an element is not a mineral.
Why is the composition of elements fixed?
A composition of an element is only fixed if it doesn't radioactively decay, chemically react, interact with a fundamental particle, and no external energy is introduced into the system. These four things happen quite a bit though and if they don't the element stays the same because it is at the lowest energy state it can obtain.
How do the atomic number change?
The atomic number of an element is FIXED it can not normally be changed. However, if the element's atom is struck by an atomic particle or the element is radioactive then the composition of the atoms nucleus can be altered. Changes to the composition of the nucleus can cause a NEW element to be formed or indeed split the atom into two NEW smaller/lighter atoms.
Is fixed composition a caracteritic of a mixture?
A fixed composition is not a characteristic of a mixture. The composition of a mixture can vary, unlike the composition of a compound that forms a chemical reaction.
What has a fixed composition and is always homogeneous?
A compound has a fixed composition and is always a homogeneous pure substance.
Does compound have a fixed composition?
Yes, compounds have a fixed composition because they are made up of a specific ratio of different elements bonded together in a precise manner. This fixed composition gives compounds specific properties and characteristics that are different from the individual elements that make them up.
Does the composition stays the same or pure substance?
A pure substance consists of only one type of element or compound. The composition of a pure substance always stays the same, with a fixed ratio of its constituent particles.
Which is a property of a pure substance uniform composition fixed composition varying composition?
A property of a pure substance is fixed composition. This means that the substance is made up of only one type of molecule or atom throughout, with no variation in its chemical composition.
How does the atomic theory of matter explain the law of conservation of mass and 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 composition.
Does mixtures have a composition?
Mixtures don't necessarily have fixed composition
