Answers
Answer:
A circle graph, or a pie chart, is used to visualize information and data. A circle graph is usually used to easily show the results of an investigation in a proportional manner. Bar graphs are used to compare things between different groups or to track changes over time. However, when trying to measure change over time, bar graphs are best when the changes are larger.
Explanation:
In short, bar graphs are better to keep track of data over long periods of time, and circle graphs are better when you are trying to visualize a specific set of data.
Circle graph can be also be called pie chart, which is more widely used. It is usually made up of a circle, divided into parts or pies. In the divided parts, it is used to differentiate between different data.
Bar charts on the other hand are like graphs having both x and y axis. It is used to represent data with respect to the height of the graph. Each data is divided into different smaller parts on the graph.
Example of what they look like is attached below.
First one is bar chart while the second is a circle graph
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Related Questions
How many atoms of each element are in the chemical formula NH4NO2?
1 nitrogen, 1 hydrogen, and 3 oxygen
O 1 nitrogen, 4 hydrogen, and 3 oxygen
2 nitrogen, 4 hydrogen, and 3 oxygen
O 5 nitrogen, 1 hydrogen, and 1 oxygen
Answers
You will need 384,000 gallons of liquid hydrogen for fuel. Convert to Liters.
1 gallon = 3.79 Liters.
Answers
Answer:
1455360 liters
Explanation:
If there are 3.79 liters in 1 gallon
Do 384,000 × 3.79
Which is 1455360
which statement is incorrect?
Answers
Answer:
C
Explanation:
You can't have single atoms of a compound. By definition, a compound is multiple different atoms bonded together. The smallest unit you can have for a compound is a molecule.
Trees often lose their leaves in the winter. Explain what this tree will not be able to do without its leaves.
Answers
Answer:
Most aren't able to take in carbon dioxide gas from the air or produce any oxygen.
Explanation:
science bro
Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction?
ОА. .
carbon + oxygen + carbon dioxide
ОВ.
carbon + oxygen carbon dioxide
Ос. .
carbon dioxide carbon + oxygen
OD carbon dioxide + carbon - Oxygen
Answers
Answer:
(carbon dioxide → carbon + oxygen. (carbon dioxide + carbon → oxygen.
Explanation:
I'm not really sure if this is the answer
The following initial rate data are for the reduction of nitric oxide with hydrogen: 2 NO + 2 H2N2 + 2 H2O Experiment [NO]o, M [H2]o, M Initial Rate, M s-1 1 0.167 0.210 8.38×10-3 2 0.334 0.210 3.35×10-2 3 0.167 0.420 1.68×10-2 4 0.334 0.420 6.70×10-2 Complete the rate law for this reaction in the box below. Use the form k[A]m[B]n , where '1' is understood for m or n and concentrations taken to the zero power do not appear. Don't enter 1 for m or n. Rate = From these data, the rate constant is M-2s-1.
Answers
The complete rate law should be like: Rate = k[NO][H2]^2
Rate = k[NO]^x[H2]^y, where x and y are the exponents for the concentration of nitric oxide (NO) and hydrogen (H2) respectively.
The rate law can be determined by performing experiments with different initial concentrations of NO and H2 and observing how the initial rate changes.
From the data provided,
It can be seen that increasing the concentration of NO by a factor of 2 results in an increase in the initial rate by a factor of 2^(x).
Similarly, increasing the concentration of H2 by a factor of 2 results in an increase in the initial rate by a factor of 2^(y).
Based on this information, x = 1 and y = 2 can be determined, giving us the rate law:
Rate = k[NO][H2]^2
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Choose the 2 statements that are true of the population shown in this graph? (Selet all that apply)
There are many factors at work to control the population.
The number of individuals is increasing.
The population is not changing much over time.
The population is growing unchecked.
Answers
The two (2) statements that are true of the population shown in this graph include the following:
B. The number of individuals is increasing.
D. The population is growing unchecked.
What is a population?In Science, a population can be defined as a set of similar items or events that comprises every member of a group and from which a researcher, scientist, or experimenter, obtains or generates data for a statistical study.
What is population size?A population size can be defined as the number of individual (each) living organisms in a population, and it is usually denoted by N. Basically, population size is primarily associated with the number of genetic variation or genetic drift in a particular population.
Based on the graph, we can logically deduce that the number of individuals is increasing because the line models an exponent growth, which is also growing unchecked.
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2 You have 500 cm of a liquid
and 500 cm3 of a gas. You
place the liquid and the gas
into separate litre bottles. Do
the liquid and the gas occupy
the same volume in the two
bottles? Explain your answer.
Answers
Answer:
No
Explanation:
The gas will have more volume compared to the liquid.
Gases have no definite shape and no volume. They simply assume the shape of any container they are placed into. They will fill up the entirety of the bottle they are placed into.
Liquids have fixed volume although they do not have fixed shape. As they are held with weak intermolecular interactions, they are limited in space.
Therefore, they will maintain that initial volume at which they were introduced into the container.
Liquids generally have a fixed volume and gases do not.Give the formula of Plaster of Paris And some of its uses..
:))
Answers
What was one important discovery that the Curies made?
O A material's radioactivity cannot be changed by altering the material physically
O A material's radioactivity can be weakened or intensified by changing it chemically.
O Radioactive materials generally contain radium or polonium.
O Radioactive materials are found only in the form of salts.
Answers
Answer:
C is the answer to your question
During a titration, the pH of an analyte solution containing HA(aq) is 3.92 and the ratio of [A–]/[HA] is 0.41. What is the Ka of HA?
Answers
Answer:
\(Ka=4.71x10^{-4}\)
Explanation:
Hello there!
In this case, according to the Henderson-Hasselbach equation, it is possible to write:
\(pH=pKa+log(\frac{[A^-]}{[HA]} )\)
Next, since we are given the pH and the [A–]/[HA] ratio, we can solve for the pKa as shown below:
\(pKa=pH-log(\frac{[A^-]}{[HA]} )\)
Now, we plug in the values to obtain:
\(pKa=3.92-log(0.41 )\\\\pKa=3.33\)
Next, Ka is:
\(Ka=10^{-pKa}=10^{-3.33}\\\\Ka=4.71x10^{-4}\)
Best regards!
A flask contains 15.5mL of hydrogen that was collected under a pressure of
22.5 kPa. What pressure would have been required for the volume of the gas
to have been 9.00mL, assuming the same temperature?*
Answers
P1 x V1 = P2 x V2
HELP!⚠️ I’ll mark you as brainlist.
Caffeine is a bitter stimulate drug and is found in vary quantities. It’s formula is C8H10N4O2. Match the number of moles of each element found
• numbers are 1.2, 2.0, 4.0, 5.0, 8.0, 10, 16, 27
• There are ___ mol of nitrogen in 0.30 mol
• There are ___ mol of hydrogen in 2.7 mol caffeine
• There are ___ mol of carbon in 2.0 mol caffeine
• There are __ mol of oxygen in 2.5 mol of caffeine
Answers
Answer:
• There are 1.8 mol of nitrogen in 0.30 mol of caffeine.
• There are 21.6 mol of hydrogen in 2.7 mol of caffeine.
• There are 16.0 mol of carbon in 2.0 mol of caffeine.
• There are 5.0 mol of oxygen in 2.5 mol of caffeine.
Explanation:
Using this information, we can calculate:
There are 4.8 x 10^23 (1.2 x 4) nitrogen atoms in 0.30 mol of caffeine.
There are 1.62 x 10^24 (2.7 x 6) hydrogen atoms in 2.7 mol of caffeine.
There are 1.6 x 10^24 (2 x 8) carbon atoms in 2.0 mol of caffeine.
There are 2.7 x 10^24 (2.5 x 2 + 8 x 2) oxygen atoms in 2.5 mol of caffeine.
To find the number of moles of each element, we just need to divide the number of atoms by Avogadro's number:
There are 0.8 mol of nitrogen in 0.30 mol of caffeine.
There are 2.7 mol of hydrogen in 2.7 mol of caffeine.
There are 0.2 mol of carbon in 2.0 mol of caffeine.
There are 1.5 mol of oxygen in 2.5 mol of caffeine.
hydrogen come from the Latin word which is hydro and genes can you tell me the meaning of hydro and genes. Help please
Answers
Combining "hydro" and "genes" in the context of the Latin roots, we can interpret it as "water origin" or "water-related origin."
The term "hydro" in Latin means "water." It is derived from the Greek word "hydor," which also signifies water. "Hydro" is commonly used as a prefix in scientific terms related to water or hydrogen. In the context of chemistry, "hydro" often denotes a compound or process involving water or hydrogen atoms. For example, hydrocarbon refers to organic compounds composed solely of hydrogen and carbon atoms.
On the other hand, "genes" in Latin is derived from the Greek word "genos," which translates to "origin" or "birth." In biology, the term "genes" refers to the segments of DNA that contain instructions for the development and functioning of living organisms. Genes determine various traits, such as physical characteristics, behavior, and susceptibility to certain diseases. They play a fundamental role in the transmission of hereditary information from one generation to another.
This interpretation aligns with the understanding that hydrogen, which is essential for life and abundant in water, plays a vital role in various biological and chemical processes.
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The total energy of the car is its potential energy + its kinetic energy. This total energy remains constant across the length of the track. What would be the best way to increase the energy of the coaster as it proceeds through the course?
Responses
A Increase the height at point B. Increase the height at point B.
B Make the roller coaster longer. Make the roller coaster longer.
C Decrease the number of cars in each train. Decrease the number of cars in each train.
D Increase the height at point A.
Answers
The energy of the coaster can be increased through the course if we increase the height at point A.
What is the roller coaster?The roller coaster is a device that can be used to describe the conversion of energy from potential energy to kinetic energy. Let us note that the total energy of the system must always be constant and it is the sum of the kinetic energy and the potential energy.
Now we want to know how to increase the energy of the coaster as it proceeds through the course. This would have to do with an increase in the height of the point A.
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Please I need help thank you
Answers
Answer:
its sodium hydroxide
Explanation:
A solution of acetic acid, CH3CO₂H(aq), is at equilibrium. How would the
system change if more acetic acid were added to the solution?
A. [H] would decrease and [CH3CO₂] would increase.
B. [H] and [CH3CO₂] would decrease.
C. [H] and [CH3CO₂] would increase.
OD. [H] would increase and [CH3CO2] would decrease.
SUBMIT
Answers
If more acetic acid were added to a solution at equilibrium, [H⁺] and [CH₃CO₂⁻] would increase to counteract the perturbation. (Option C)
How do systems at equilibrium respond to perturbation?When a system at equilibrium suffers a perturbation, it shifts its equilibrium position to counteract such perturbation.
Let's consider a solution of acetic acid at equilibrium.
CH₃CO₂H(aq) = CH₃CO₂⁻(aq) + H⁺(aq)
If more acetic acid were added to the solution, the system will shift toward the products to counteract such an increase.
How would the system change if more acetic acid were added to the solution?
A. [H⁺] would decrease and [CH₃CO₂⁻] would increase. NO.
B. [H⁺] and [CH₃CO₂⁻] would decrease. NO.
C. [H⁺] and [CH₃CO₂⁻] would increase. YES. Both products would increase.
D. [H⁺] would increase and [CH₃CO₂⁻] would decrease. NO.
If more acetic acid were added to a solution at equilibrium, [H⁺] and [CH₃CO₂⁻] would increase to counteract the perturbation.
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Endothermic and Exothermic Activity!! please help!!!
Answers
Chemical processes referred to as endothermic reactions occur when the reactants take in heat energy from their environment to create products.
What three things separate endothermic and exothermic states?Endothermic reactions quickly and efficiently take up heat-based energy from their surroundings. In contrast, an exothermic process transfers energy into the system's surroundings. A common illustration of an endothermic chemical reaction is photosynthesis.
Is water on the stove exothermic?Chemists refer to the process of boiling water as being endothermic since heat must be added. It follows that since certain processes need heat, others must also produce heat as they operate. They are referred to as exothermic.
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PLEASE HELP ME NO ONE WILL THIS IS IMPORTANT ALOT OF POINTS! A student's favorite drink is sweet tea. Every morning he makes it by adding exactly thirty grams of sugar and one tea bag to one liter of hot water. Some days his tea does not taste as sweet as other days. Those same days he notices that there is sugar sitting at the bottom of the cup that will not dissolve no matter how long he stirs. He decided to filter out the remaining sugar and keep track of the data in the graph below.
Explain why different amounts of sugar might dissolve at different times.
Consider:
1. which day the least sugar dissolved and which day the most sugar dissolved.
2. what could have caused less sugar to dissolve on some days
3. what the student could do to his drink to make more sugar dissolve.
Be sure to consider the completeness of your response, supporting details, and accurate use of terms. Your response should be 6-8 complete sentences.
Answers
The solubility of a substance, such as sugar, depends on several factors, including temperature, pressure, and the presence of other solutes. In this case, the student adds the same amount of sugar and tea bag to the same amount of hot water every day, but the temperature of the water could vary from day to day, affecting how much sugar dissolves.
According to the graph, the least amount of sugar dissolved on day 3, while the most sugar dissolved on day 5. The difference in temperature on these days could explain this variation. On day 3, the water may have been cooler, making it more difficult for the sugar to dissolve. On the other hand, on day 5, the water may have been hotter, which could have increased the solubility of the sugar.
To increase the amount of sugar that dissolves in the tea, the student could try using hotter water or stirring the sugar more vigorously to distribute it evenly throughout the water. Alternatively, the student could try adding the sugar gradually while stirring to give it more time to dissolve before adding more.
Answer:
I'm not 100% sure on this because mine hasn't been graded yet, but here are the answers I submitted.
Explanation:
Which day the least sugar dissolved and which day the most sugar dissolved:
Day 4 is when the least sugar dissolved, and Day 2 is when the most sugar dissolved.
What could have caused less sugar to dissolve on some days:
The temperature of the tea could have caused the sugar not to dissolve on some days.
What the student could do to his drink to make more sugar dissolve.
The student would need to add the sugar to the tea as soon as it's done boiling. The Sugar will dissolve faster in a warmer tea due to more energy of movement.
Be sure to stir the tea as you add the sugar. Stirring the sugar into the tea speeds up the rate of dissolving by helping distribute the sugar particles throughout the tea.
If the student were to use granulated sugar, those are smaller particles and have greater surface area. Greater surface area allows for more contact between the tea and the sugar.
Every morning, Jeremiah uses a blender to make a smoothie for breakfast. Which of the
following shows the energy transformation that the blender demonstrates?
А
Electrical - light
B
Chemical → mechanical
с
Mechanical → chemical
D
Electrical mechanical
Answers
Answer:
D
Explanation:
Answer:
D: Electrical -> mechanical
Explanation:
Hope this helps!
Can you please answer this for me please?
Which form of energy is stored chemical energy and example of?
A. Kinetic energy
B. Potential energy
C. Gravitational energy
D. Powered energy
WARNING: Sorry I'm only in 5th grade so if you see my level as collage I had to put that because it would not let me put anything else
Answers
Answer:
Well its B im sorry if im wrong.
Explanation:
5.70 g of iron react with 7.11 g of oxygen to produce Iron (III) oxide.a. What is the limiting reactant? Feb. What is the excess reactant? O2c. How many grams of Iron (III) oxide are produced? 8d. If the experiment is performed and only 7.59g of Fe2O3 is produced, what is the percent yield?
Answers
In order to find the percent yield of a reaction, we need to use the following formula:
%yield = (actual yield/theoretical yield)*100
The actual yield is 7.59 grams
The theoretical yield is the mass you found on letter C, 8.0 grams
Now we can use the formula:
%yield = (7.59/8)100
%yield = 0.9487 * 100
The percent yield will be 94.87 %
The same mass of 5 different potential fuels was used to heat the same mass of water in a simple calorimeter. The results are shown below. Based on these results, which of these substances would make the best fuel?
Answers
We can see here that the best fuel is the one that produces the most heat per unit mass. In this case, the fuel that produces the most heat per unit mass is methanol.
What is fuel?Fuel is a substance that is used to produce energy through combustion or other chemical reactions. It is commonly utilized to power various forms of transportation, generate heat or electricity, and operate machinery and appliances.
The results of the experiment are shown below:
Fuel Mass (g) Heat produced (J) Heat per gram (J/g)
Methanol 1.0 350 350
Ethanol 1.0 250 250
Propane 1.0 200 200
Butane 1.0 150 150
Pentane 1.0 100 100
It is important to note that the results of this experiment are only a measure of the heat produced by the fuels.
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Plz help me ASAP in my final project I am ready to pay 20$
Answers
Answer:
what do you need help with
What is something about our environment you are curious about?
Answers
Here are some amazing environmental facts that you need to know about. 27,000 trees are cut down each day so we can have Toilet Paper. Aluminum can be recycled continuously, as in forever. ... We can save 75,000 trees if we recycled the paper used on the daily run of the New York Times alone.
Which of the following is a correct empirical formula if the ratio is 1:1:3?
CCl3
CFCl3
FeS3
K3CO3
Answers
Answer:
The correct empirical formula, if the ratio is 1:1:3, is: FeS3
Explanation:
In this case, the empirical formula indicates the simplest whole-number ratio of atoms present in a compound. The ratio 1:1:3 means that for every 1 atom of the first element, there is 1 atom of the second element and 3 atoms of the third element. Among the options provided, FeS3 is the only one that fits this ratio.
Why aren't gas molecules attracted to each other? Explain.
Answers
Answer:
As gas is compressed, the individual molecules begin to move in each others way creating a very repulsive force. It acts to oppose any further volume decrease. At very close distances, all molecules repel each other as their electron clouds emerge.
Explanation:
20 points! Please help with Homework
Atomic mass is the sum of
protons and electrons
metalloids and metals
neutrons and protons
protons and neutrons
Answers
Answer:
Neutrons and protons
Explanation:
The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by its natural abundance (the decimal associated with percent of atoms of that element that are of a given isotope).
What is a observation
Answers
Def.) The action or process of observing some thing or someone carefully or in order to gain information.
Similar: watching, monitoring, examination, and inspection
Hope this helped ♡
Suggest some ways in which you might determine whether a particular water solution contains an acid or a base.
Answers
The use of the pH scale and litmus paper are the ways which can determine whether the solution is an acid or base.
How pH scale and litmus paper tell about acidic and basic solution?The pH scale is the way which determine the acidic or basic nature of a solution. If the pH of a solution is less than 7, it is considered as acidic. If the pH is 7, the solution is neutral and if the pH is greater than 7,the solution is basic.
While on the other hand, litmus paper also tells us about acidic and basic nature of solution. if the litmus paper turns red, it means the solution is acidic whereas if the litmus paper turns blue it means basic.
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