Which structural formula correctly represents an organic compound
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A chemical equation is shown below.CH4 + Cl2 → CCl4 + HCl What are the coefficients that should be added to balance this equation? Use complete sentences to explain your answer. Explain how this chemical reaction demonstrates the conservation of mass.
What forms when iron-53 decays?
Which of the following is not part of daltons atomic theory
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Answer:
Actually, its sodium SulFIDE not sodium sulfret
Answer:
Sodium Sulfuret
(fixed composition) or_____
(variable composition)
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Mixtures can be either fixed composition or variable composition.
A fixed composition mixture is a mixture that has a constant and unchanging composition, meaning that the proportions of the components remain the same throughout the mixture. Examples of fixed-composition mixtures include solutions, suspensions, and colloids. In a solution, for example, the solute is dissolved in the solvent in a specific ratio, and the composition of the solution remains constant. In a suspension, the particles of one substance are suspended in another substance, but the composition of the suspension remains constant. In a colloid, the particles of one substance are dispersed throughout another substance, but the composition of the colloid remains constant.
On the other hand, a variable composition mixture is a mixture that can change its composition over time. Examples of variable composition mixtures include gases and solutions that are not in equilibrium. In a gas, the molecules are free to move and interact with each other, so the composition of the gas can change over time. In a solution that is not in equilibrium, the components can separate or mix over time, leading to changes in the composition of the solution.
It's important to note that the composition of a mixture can be influenced by a variety of factors, including temperature, pressure, and the presence of other substances. For example, the composition of a solution can be affected by changes in temperature, as the solute and solvent can interact differently at different temperatures. Similarly, the composition of a gas can be affected by changes in pressure, as the molecules can move more or less freely at different pressures.
In conclusion, mixtures can be either fixed composition or variable composition, and the composition of a mixture can be influenced by a variety of factors. It's important to understand the composition of a mixture in order to understand its properties and behavior.
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Mass is the amount of the substance present in the sample of the mixture, it is a quantitative measure. The mass of the magnesium consumed is 23.76 gm.
What is mass?
Mass of any substance is the product of the moles of the substance and the molar mass of the substance present in the sample mixture.
The reaction can be shown as,
From the reaction the stoichiometry gives,
3 moles of magnesium reacts with 1 mole of nitrogen = 1 mole of magnesium nitride
The mass of the nitrogen reacted is given as 9.27 gm.
Calculate the number of moles of nitrogen:
Calculate the moles of magnesium reacted:
Calculate the mass of magnesium reacted:
Therefore, the mass of magnesiumis 23.76 gm.
Learn more about mass and moles here:
Answer:
The mass of Mg consumed is 23.76 g.
Explanation:
Magnesium and nitrogen react as : three moles of magnesium reacts with one mole of nitrogen to give one mole of magnesium nitride.
as given that the mass of nitrogen reacted = 9.27 g
moles of nitrogen reacted =
Thus moles of magnesium reacted = 3 X 0.33 = 0.99 moles
mass of Mg reacted = moles X atomic mass = 0.99 X 24 = 23.76 grams
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2)They all have mass.
3)They are all solids.
Because of 1 and 2, they are all matter.
It consists of a single element or compound.
It may have substances in different states of matter.
It is very difficult to separate the components.
The proportion of the particles that make it up cannot be altered.
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Answer:
B
Explanation:
It may have substances in different states of matter
Hope u mark as branliest
b. potential energy
c. activation energy
d. thermodynamic energy
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Answer: Potential Energy
Explanation:
The term that best describes the stored energy based on the position or chemical composition of an object is its potential energy. It is the energy possessed by a body due to its virtue of its position. Any body at rest possesses this energy because they are in one position (not moving).
An object thrown up possesses potential energy at its maximum height before falling under gravity because the object is at rest at the maximum height.