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grandymaker [24]
3 years ago
12

Use the graph to determine the velocity between 6 and 12 seconds. m/s What was the velocity over the entire trip? m/s

Chemistry
2 answers:
likoan [24]3 years ago
6 0

Answer:

-2 m/s

0 m/s

Explanation:

I just did it

natka813 [3]3 years ago
6 0

<u>Answer:</u> The velocity of the particle is -2 m/s

<u>Explanation:</u>

Velocity is defined as the ratio of displacement of a particle to the time taken by the particle. The units of velocity is meters per second.

The equation representing velocity of a particle is given as:

\text{Velocity}=\frac{\text{Displacement}}{\text{Time}}

From the graph:

The particle has traveled a distance of 12 m in the downward direction in between 6 to 12 seconds.

Displacement of particle = -12 m

Time taken = 12 - 6 = 6 sec

Putting values in above equation, we get:

\text{Velocity}=\frac{-12m}{6sec}=-2m/s

Negative side represents the particle is moving in downward direction.

Hence, the velocity of the particle is -2 m/s

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Which of the following best describes your choice? It’s my best explanation for now, but I really would have to test my idea to
HACTEHA [7]

I can deduce here that the best that describes my choice is: It’s my best explanation for now, but I really would have to test my idea to be sure.

<h3>What is choice?</h3>

Choice actually refers to the act of choosing between two or more things. It has to do with going with the option, idea, decision, product or something that one prefers.

When we make choices, it depicts what we actually want. Some people still make wrong choices. The choices people make can either make or mar them in the present or future.

Looking at the given question, my choice is actually the first option.

It's clear that the idea hasn't been tested in order to be sure though it's has the best explanation.

Learn more about choice on brainly.com/question/6947486

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8 0
2 years ago
Can anyone answer these?
Maurinko [17]

Answer:

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Explanation:

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8 0
4 years ago
Convert 6.35 grams of aluminum sulfate to moles​
vampirchik [111]

Answer:

There are 0.0186 moles of formula units in 6.35 grams of aluminum sulfate \rm Al_2(SO_4)_3.

Explanation:

What's the empirical formula of aluminum sulfate?

Sulfate is an anion with a charge of -2 per ion. When sulfate ions are bonded to metals, the compound is likely ionic.

Aluminum is a group III metal. Its ions tend to carry a charge of +3 per ion.

The empirical formula of an ionic compound shall balance the charge on ions with as few ions as possible.

The least common multiple of 2 and 3 is 6. That is:

  • Three sulfate ions \rm {SO_4}^{2-} will give a charge of -6.
  • Two aluminum ions \rm Al^{3+} will give a charge of +6.

Pairing three \rm {SO_4}^{2-} ions with two \rm Al^{3+} will balance the charge. Hence the empirical formula: \rm Al_2(SO_4)_3.

What's the mass of one mole of aluminum sulfate? In other words, what's the formula mass of \rm Al_2(SO_4)_3?

Refer to a modern periodic table for relative atomic mass data:

  • Al: 26.982;
  • S: 32.06;
  • O: 15.999.

There are

  • two Al,
  • three S, and
  • twelve O

in one formula unit of \rm Al_2(SO_4)_3.

Hence the formula mass of \rm Al_2(SO_4)_3:

\underbrace{2\times 26.982}_{\rm Al} + \underbrace{3\times 32.06}_{\rm S} + \underbrace{12\times 15.999}_{\rm O} = \rm 342.132\;g\cdot mol^{-1}.

How many moles of formula units in 6.35 grams of \rm Al_2(SO_4)_3?

\displaystyle n = \frac{m}{M} = \rm \frac{6.35\;g}{342.132\;g\cdot mol^{-1}} = 0.0186\;mol.

8 0
4 years ago
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Dafna1 [17]
From the periodic table:
the mass of lithium = <span>6.941 grams
Since lithium is monoatomic, therefore, the molar mass of lithium = </span><span>6.941 grams

Now, we need to calculate the mass of two moles of lithium:
mass of two moles of lithium = 2 * </span><span>6.941 = 13.882 grams

Based on the above calculations, the answer is:
True</span>
3 0
3 years ago
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fredd [130]

Answer:

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