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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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In a sample containing 100 atoms of X, 70 were found to be 9X while 30 were 11X isotopes. Determine the average relative atomic
Burka [1]

The average relative atomic mass of a sample containing 100 atoms of X, 70 were found to be 9X while 30 were 11X isotopes is 9.6g.

<h3>What is Atomic mass? </h3>

Atomic mass is defined as the whole mass of an atom.

It is also defined as the sum of atomic number and number of neutrons.

Atomic mass = Atomic number + neutrons

<h3>What is Isotopes?</h3>

Isotopes are the those element which have same atomic number but have different mass number and number of neutrons.

The average relative atomic mass can be calculated as

mass of isotopes/ mass of sample

mass of all isotopes = (70 × 9X) + (30 × 11X)

=(630 + 330) X

= 960X

Average relative atomic mass = 960X/ 100 X

= 9.6 g

Thus, we concluded that the average relative atomic mass of a sample containing 100 atoms of X, 70 were found to be 9X while 30 were 11X isotopes is 9.6g.

learn more about atomic mass:

brainly.com/question/14250653

#SPJ9

5 0
1 year ago
The volume of carbon gas at 5.0 ATM was measured to be 363 ml. What will the pressure be if the volume is change to .00020 ml?
aleksley [76]

Answer:

The answer to your question is P2 = 9075000 atm

Explanation:

Data

Pressure 1 = P1 = 5 atm

Volume 1 = V1 = 363 ml

Pressure 2 = P2 = ?

Volume 2 = 0.0002 ml

Process

To solve this problem use Boyle's law

                 P1V1 = P2V2

-Solve for P2

                 P2 = P1V1/V2

-Substitution

                  P2 = (5 x 363) / 0.0002

-Simplification

                  P2 = 1815 / 0.0002

-Result

                 P2 = 9075000 atm

5 0
3 years ago
Distinguish between a solution in general and an aqueous solution
Sveta_85 [38]

Answer:

  • What distinguish a solution in general from an aqueous solution is the solvent. A solution in general may contain any solvent, which may be solid, liquid or gas, while an aqueous solution is formed with water as solvent.

Explanation:

A solution in general is a homogeneous mixture in which a substance, named solute, is dissolved, in other substance, name solvent.

Solutions may be in solid, liquid or gas state. There are many kind of solvents. Usually, in a lab you work with liquid solutions. Some liquid solvents are: ethanol, glycerin, hexane, benzene, and water, among many others.

Aqueous solution is a solution where the solvent is water. Of course, the solute may be any one: NaCl, sugar, ethanol, an acid, a base, a salt.

What distinguish a solution in general and an aqueous solution is the solvent.

3 0
3 years ago
Pls help me I beg you
just olya [345]

Answer:

Es la c

Explanation:

Espero que te ayude

6 0
3 years ago
Read 2 more answers
HELP ASAP!
Solnce55 [7]

Answer:

oxygen

Explanation:

3 0
2 years ago
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