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beks73 [17]
3 years ago
10

When a bumper car changes speed, does that mean there must be a net force acting on it? Explain, using the word “accelerates” in

your answer.
Chemistry
1 answer:
Marianna [84]3 years ago
3 0

Answer:

This includes situations when the speed, the direction, or both change. For example, when a car accelerates, the driving force from the engine is greater than the resistive forces. The resultant force is not zero.

Explanation:

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A 10 M concentrated stock solution of NaCl was used to prepare 5 liters of diluted 1 M solution. Which of the following statemen
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Answer:

D. The volume of the solvent used was less than 5 liters.

Explanation:

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<em>(MV) before dilution = (MV) after dilution.</em>

M before dilution = 10.0 M, V before dilution = V of stock = ??? L.

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the pressure inside each of two identical cylinders is equal to atmospheric pressure. one cylinder contains hydrogen, the other
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The number of moles of hydrogen is equal to the number of moles of nitrogen.

According to the ideal gas equation

PV = nRT

where

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  • R = the universal gas constant
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In the problems there are two identical cylinders means, V₁ = V₂

The pressure inside each of two identical cylinders is equal to atmospheric pressure means, P₁ = P₂

Both gases are at the same temperature, means T₁ = T₂

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\frac{P_1 V_1}{P_2 V_2} \:=\: \frac{n_1 T_1}{n_2 T_2}

n₁ = n₂

So the total amount of hydrogen gas is equal to total amount of ideal nitrogen gas.

Learn more about the ideal gas equation here: brainly.com/question/27870704

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A reaction in which a single compound is broken down into two or more elements or new compounds
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Decomposition → ab = a +b 
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Answer:

Given: 800g S02 Unknown: ?g S

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