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Sloan
4 months ago
12

El teñido de una camiseta blanca con pintura es un cambio fisico o quimico

Chemistry
1 answer:
Anarel [2.9K]4 months ago
4 0

respuesta: cambio fisico

explicacion: Un cambio químico ocurre cuando se altera la estructura atómica, en este caso, al teñir la camiseta, esta sigue siendo una camiseta sin perder su identidad.

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3. For the reaction: 2X + 3Y 3Z, the combination of 2.00 moles of X with 2.00
lions [2927]

Answer:

Explanation:

Considering the reaction: 2X + 3Y = 3Z, combining 2.00 moles of X with 2.00 moles of Y results in the production of 1.75 moles of Z.

      2 mol       2 mol   1.75 mol

       2X     +    3Y       =    3Z

2 mol is required with 3 mol to yield 3 mol.

3 mol Z / 3 mol Y =  1 to 1

should yield 2 mol Z

1.75 / 2 = 87.5 % production yield

3 0
3 months ago
In the first order decomposition of acetone at 500°c, ch3och3→ productit is found that the concentration of acetone is 0.0300 m
lorasvet [2795]
For the first-order decomposition, the equation is: ln(x0 / x) = kt. At t = 200, x = 0.0300 M, we have ln(x0 / 0.03) = 200k. At t = 400, when x = 0.0200 M, we utilize ln(x0 / 0.02) = 400k. By multiplying the first equation by 2, we get 2ln(x0 / 0.03) = 400k, which aligns with the second equation, leading us to conclude that 2ln(x0 / 0.03) = ln(x0 / 0.02). This suggests (x0 / 0.03)^2 = x0 / 0.02, allowing us to find x0 = 0.045 M as the initial concentration. Plugging this back into the first equation yields: ln(0.045 / 0.03) = 200k, from which it follows that k = 0.0020273 (rate constant). The half-life can be calculated with x = 0.5x0: ln(x0 / 0.5x0) = 0.0020273t, resulting in ln(2) = 0.0020273t, which simplifies to t = 341.90 minutes (half-life).
5 0
2 months ago
The volume of the ideal gas in the container is 9 m3. What would the volume be if four more blocks were placed on top of the lid
castortr0y [3046]
Response:
             4.5 m³

Resolution:
              The statement indicates the presence of two blocks on a lid of a container with a volume of 9 m³. The lid's weight is equal to that of the two blocks. Thus, there were initially four blocks (or 4 atm pressure) acting on a volume of 9 m³.

After adding four additional blocks on the lid, the pressure rises from 4 atm to 8 atm (2 atm from the lid, 2 atm from the original blocks, and 4 atm from the new blocks).

Hence, The data established is,

                  P₁  =  4 atm

                  V₁  =  9 m³

                  P₂  =  8 atm

                  V₂  =?

Using Boyle's Law,

                               P₁ V₁  =  P₂ V₂

Resolving for V₂,
                               V₂  =  P₁ V₁ / P₂

Substituting values yields:
                               V₂  =  (4 atm × 9 m³) ÷ 8 atm

                               V₂  =  4.5 m³
0 0
3 months ago
What is another name for the molecular orbital theory of bonding in metals?
Alekssandra [3086]
The correct option is A. The band theory of metal explains how metals carry electricity by utilizing the electrons in their outer shells. When atomic orbitals of metals with similar energy levels merge, they create molecular orbitals and form bands. These bands facilitate the movement of electrons within metals, enabling them to conduct electricity.
4 0
2 months ago
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