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Nataly [62]
3 years ago
5

PLZZZZZZZZ HELPPPP A group of students is investigating whether the smoothness of a surface affects the force of friction. Each

student pushes a book on two different surfaces. One surface is ice and the other is concrete. The distance traveled by the book on each surface is shown. Experimental Observations Student 1 Student 2 Student 3 Student 4 Distance traveled by book on ice 23 cm 21 cm 24 cm 22 cm Distance traveled by book on concrete 15 cm 18 cm 16 cm 17 cm Based on the table, which conclusion is correct about the average distance traveled? It is less on concrete. It is greater on concrete. It is less when the book is pushed harder. It is independent of the type of surface.
Chemistry
1 answer:
Mariulka [41]3 years ago
7 0

Answer:

ice

Explanation:

uhh concrete has rougher surface

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Consider the reaction 2 SO2(g) + O2(g) <=> 2 SO3(g), which is exothermic as written. What would be the effect on the equil
enot [183]

Answer:

Removing O₂, means removing one of the reactants and the system would counteract this effect by producing more O₂, thereby shifting the equilibrium position to the left and favouring the backward reaction.

Explanation:

The principle that explains how changes in temperature, Concentration and Pressure of reactants or products of a reaction at equilibrium affect the equilibrium position of the reaction is the Le Chatelier's principle.

The Principle explains that a system/process if a system/process which is at equilibrium is disturbed/perturbed/constrained by one or more changes (in concentration, pressure or temperature), the system would shift the equilibrium position to counteract the effects of this change.

Removing O₂, means removing one of the reactants (changing its concentration) and the system would counteract this effect by producing more O₂, thereby shifting the equilibrium position to the left and favouring the backward reaction.

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3 years ago
How many of grams of CuSO4 are in 475ml of a 2.0M aqueous solution
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Answer:

151.63 g

Explanation:

We first get the number of moles;

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Therefore;

Mass = moles × molar mas

         = 0.95 moles × 159.609 g/mol

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8 0
4 years ago
Read 2 more answers
Can someone provide a answer with explanation for this question? Thanks!
zhuklara [117]

Answer:

Explanation:

B

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