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Aleksandr [31]
2 years ago
9

1. LINE GRAPHS: Line graphs are used when we compare two different number values. 1.1. Draw two graphs on the same set of axes s

howing the changes in heart rate of two boys. Jor and Thabo, as they run over a certain distance. 70 Distance run (m) John's heart rate Thabc's heart rate (beats per minute) (beats per minute) 0 60 100 75 80 200 85 90 400 100 110 800 120 1500 115 120 130​
Chemistry
1 answer:
melomori [17]2 years ago
6 0

A line graph can show information about two or more data sets and is useful to compare them. <em>In this example, you can compare the change in the heart rate of the two boys. You will find the graph in the attached files.</em>

As the statement says, the line graphs can be used to compare results.

It is basically a chart showing a line connecting many data points.

It must contain two axes

→ Y ax ⇒ Dependent variable ⇒ In this example, it is the <em>heart rate values</em>

→ X ax ⇒ Independent variable ⇒ In this example, it is the <em>number of times the measurements were taken. </em>

So in this example, data about the change in heart rate was taken from two boys, John and Thabo.

<em>Note about the data table: Since I do not know which value belongs to each boy, I drow a new table. You should use the data of your table to make a new graph. </em>

When making the graph, you will see the difference between the boys and how the heart rate fluctuated as measurements were taken.

You can make conclusions about your results that are easier to see in the graph.

For instance, according to the attached graph, we could say that,

  • Thabo showed a more varying heart rate, with an extreme point at 1500 beats per minute.

  • Jhon showed a more constant heart rate that fluctuated between 70 and 120, with an extreme point of 400 beats/min.

You can learn more about line graphs at

brainly.com/question/13298277

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The heat that creates this temperature change coming from change in the internal energy of the system as per as first law of thermodynamics.

<h3>What is Boyle's law ?</h3>

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As we know, Boyle's law only works when the gas is kept at a constant temperature

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Design an experiment to collect data that supports the claim that a 1.0M NaCl solution is a homogenous mixture.
Alika [10]
The claim is that NaCl mixture is a homogeneous mixture.
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We can notice that once the NaCl is diluted in water, all what you can see is a clear solution. You cannot see the separate particles of NaCl in water.
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Now, we will heat this solution until it boils and water starts evaporating. We will place a cold surface above the steam coming out from the boiling solution.

What we will observe is that when all the water evaporates, we can see white precipitate of NaCl in the bottom of the container. Examining the cold surface placed above the steam, we can see that the water has condensed on this surface.
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