1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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

You might be interested in
What is the solute and solvent in roundup
olga nikolaevna [1]

Answer:

solute is that we disolve in solvent

solvent is in which we dissolve solute

8 0
3 years ago
What is the ph of a solution labeled .30 trimethylamine k for trimethylamine is 7.42 x 10^4
valentina_108 [34]

Answer:the pH is 12

Explanation:

First We need to understand the structure of trimethylamine

Due to the grades of the bond in the nitrogen with a hybridization sp3 is 108° approximately, then is generated a dipole magnetic at the upper side of the nitrogen, this dipole magnetic going to attract a hydrogen molecule of the water making the water more alkaline

C3H9N+ H2O --> C3H9NH + OH-

k=\frac{[C3H9NH]*[OH-]}{[C3H9N]}

Then:

The concentration of the trimethylamine is 0.3 and the concentration of the ion C3H9NH is equal to the OH- relying on the stoichiometric equation. We could find the concentration of the OH- ion with the square root of the multiplication between k and the concentration of trimethylamine

[OH-]=\sqrt{ 0.3*7.42x10^{-4}}

[OH-]=0.01

pH=14-(-log[OH-])

pH=12

5 0
3 years ago
Suppose the flask is already at equilibrium but then the volume of the reaction flask is then reduced what will happen
sveta [45]

1) Answer is: c) The reaction will proceed right.

Balanced chemical reaction: N₂(g) + 3H₂(g) ⇄ 2NH₃(g) ΔH = +92 kJ.

Reducing the volume of the system increase the partial pressures of the products and reactants.

With a pressure increase due to a decrease in volume, the side of the equilibrium with fewer moles is more favorable, there are 4 moles at the left side (three moles of hydrogen and one mole of nitrogen) and 2 moles (ammonia) at the right side of the reaction.

2) Answer is: d) The partial pressure of ammonia will increase.

This reaction is endothermic (enthalpy is higher than zero), which means that heat is added.

According to Le Chatelier's principle when the reaction is endothermic heat is included as a reactant and when the temperature increased, the heat of the system increase, so the system consume some of that heat by shifting the equilibrium to the right,  producing more ammonia.

8 0
3 years ago
Predict what kind of energy process happens when Lye, NaOH(s) is put in water and the water gets hot
Grace [21]
What happens is that the sodium solution when put in water reacts and creates thermal energy .
3 0
3 years ago
Read 2 more answers
Homogenized milk is a colloid. It has been treated to prevent its different components from separating when it stands. When non-
frez [133]

Answer:

Heterogeneous mixture

Explanation:

A homogeneous mixture is defined as a mixture in which the constituents of the mixture are uniformly distributed. A typical example of a homogeneous mixture is when a salt is dissolved in water.

A heterogeneous mixture refers to a kind of mixture whereby the composition of the mixture is not uniform. A typically example of a heterogeneous mixture is non-homogenized milk.

Since non-homogenized milk is not homogeneous, the cream rises to the top and separates from the rest of the mixture because the emulsion has not been stabilized. However, homogenized milk is just milk whose emulsion has been stabilized the cream does not separate when left to stand.

7 0
3 years ago
Other questions:
  • Which of the following is consistent with a reaction that proceeds spontaneously in the reverse direction (assume all variables
    15·1 answer
  • What is the missing part of the chemical equation shown below? acid + base ? salt + ________
    12·2 answers
  • What are the properties of elements??​
    15·2 answers
  • The energy level diagram shown below represents a fictional gas. What is the energy of a photon that would move an electron from
    9·1 answer
  • The diagram below represents a beaker of water being heated by a flame. The arrows represent heat
    14·1 answer
  • What is true about elements that are in the same column group or family
    9·1 answer
  • C3H8(g) + 5O2(g) ⟶ 3CO2(g) + 4H2O(g) H = -2220 kJ If 865.9 g of H2O is produced during this combustion, how much heat is generat
    10·1 answer
  • HELPPPPPPPPPPPP
    10·2 answers
  • The vapor pressure of ethanol at 25 Celsius is 0.0773 atm. Calculate the vapor pressure in mmHg and torr. Round each of your ans
    5·1 answer
  • Which observation most likely indicates that only a chemical change has taken place
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!