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Brilliant_brown [7]
4 years ago
14

When coal is burned, sulfur is released into the air, where it reacts with oxygen to produce sulfur dioxide and sulfur trioxide.

Which of the following is true of this process?
A. The identity of each reactant remains the same.
B.Sulfur dioxide and sulfur trioxide are the reactants in this change.
C.The products have different chemical properties than those of the reactants.
D. The products contain more sulfur atoms and fewer oxygen atoms than the reactants.
Chemistry
2 answers:
Mnenie [13.5K]4 years ago
8 0

Answer:

c

Explanation

they have different properties now

Wewaii [24]4 years ago
6 0
Answer will be ‘C’. The products have different chemical properties than those of the reactants.
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liubo4ka [24]

Answer:

True

Explanation:

The complete question is:

<u><em>"A reaction contains two reactants, A and B. If A is doubled, there will be a greater number of effective collisions between reactants. TRUE FALSE"</em></u>

Collision Theory indicates that chemical reactions take place because molecules, atoms or ions collide with each other.

Furthermore, the molecules must collide effectively, that is, not all reagent collisions lead to product formation. Effective shock means that the reagent molecules have enough kinetic energy at the time of the shock for their bonds to break and product bonds to form. In addition, the molecules of the reagents must be properly oriented for the reaction to take place.

As the concentration increases, the number of shocks increases. In other words, by increasing the concentration of the reactants, the probability of collision between their molecules increases, and therefore the number of effective collisions.So the statement is true-

6 0
3 years ago
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Help answer the questions in the photo above
DanielleElmas [232]

Let the person at the Left be A and Person at the right be B

then the force by person A will be

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which is,

20N+11N=29N

then the force by person B will be,

25N+5N=30N

1) the net force will be 30N-29N=1N

2) the force are unbalanced as the net force acting on the object is not zero.

3) the rope will move towards the right as there is a net force of 1N towards the right.

5 0
3 years ago
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Sodium is much more apt to exist as a cation than is chlorine. this is because __________. sodium is much more apt to exist as a
den301095 [7]
<span>Answer: Correct answers are- Electron affinity decreases; Cl has 7 valence electrons but Na has only 1. So Na is going to lose its e, Cl is going to gain an e.</span>
4 0
4 years ago
Which of the following is true for a system whose equilibrium constant is much greater than one?
vladimir2022 [97]

Answer:

A) The reaction mixture contains mostly products at equilibrium  

Explanation:

For the general reaction

Reactants ⇌ Products

The equilibrium constant is

K_{\text{eq}} = \dfrac{\text{[Products]}}{\text{[Reactants]}}

Thus, if K is large, the concentration of products is greater than that of reactants.

The reaction mixture will contain mostly products at equilibrium.

C) and E) are wrong. The equilibrium constant gives us information only on the position of equilibrium, not on how fast it is achieved.

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4 years ago
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lana66690 [7]

Answer:

1.52M in NaCl

Explanation:

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=> molarity (M) = 3.8 moles / 2.5 Liters solution = 1.52 molar solution in NaCl

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