2 years ago

What is the law of conservation of mass and how does it relate to chemical equations?

1 answer:

6 0

Answer: Matter cannot be created or destroyed in chemical reactions.

Explanation: This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions.

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When an object falls to the ground, potential energy is most likely transformed into

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Answer:

kinetic energy

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When the object is released, the gravitational potential energy is gradually converted into kinetic energy as it picks up speed.

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3 years ago

Consider the group a1 element sodium atomic number 11, the group 3a element aluminum atomic number 13, and the group 7a element

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According to there chemical properties

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3 years ago

2c4H10 +13O2 —>8CO2+10H2O to find how many moles of oxygen would react with 4.3 mol C4H10

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Answer:

$\large\boxed{\text{28 mol of O$_{2}$}}$

Explanation:

2C₄H₁₀ + 13O₂ ⟶ 8CO₂ + 10H₂O

n/mol: 4.3

13 mol of O₂ react with 2 mol of 2C₄H₁₀

$\text{Moles of O}_{2} = \text{4.3 mol C$_{4}$H$_{10}$} \times \dfrac{\text{13 mol O}_{2}}{\text{2 mol C$_{4}$H$_{10}$}} = \textbf{28 mol O}_{2}\\\\\text{The reaction requires $\large\boxed{\textbf{28 mol of O$_{2}$}}$}$

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3 years ago

Andrew walks through his garden and observes that the shapes of dewdrops are not always the same. Suppose he wants to investigat

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Answer: A, C, E

Explanation: PLATO. all testable questions.

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3 years ago

Can somebody explain step by step how to solve decomposition reactions?

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A decomposition reaction occurs when one reactant breaks down into two or more products. It can be represented by the general equation:

AB → A + B
In this equation, AB represents the reactant that begins the reaction, and A and B represent the products of the reaction. The arrow shows the direction in which the reaction occurs.

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3 years ago