The chemical equation below shows the combustion of methane (ch4). Ch4 + 2o2 right arrow. Co2 + 2h2o the molar mass of oxygen gas (o2) is 32. 00 g/mol. The molar mass of carbon dioxide (co2) is 44. 01 g/mol. What mass of co2, in grams, will form when 8. 94 g o2 completely react?.
Taking into account the reaction stoichiometry, 6.15 grams of CO₂ are formed when 8.94 grams of O₂ reacts completely.
In first place, the balanced reaction is:
CH₄ + 2 O₂ → CO₂ + 2 H₂O
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
CH₄: 1 mole O₂: 2 moles CO₂: 1 mole H₂O: 2 molesThe molar mass of the compounds is:
CH₄: 16.04 g/mole O₂: 32 g/moleCO₂: 44.01 g/moleH₂O: 18 g/mole
Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:
CH₄: 1 mole× 16.04 g/mole= 16.04 gramsO₂: 2 moles× 32 g/mole= 64 gramsCO₂: 1 mole× 44.01 g/mole= 44.01 gramsH₂O: 2 moles× 18 g/mole= 36 grams
Then the following rule of three can be applied: if by reaction stoichiometry 64 grams of O₂ form 44.01 grams of CO₂, 8.94 grams of O₂ form how much mass of CO₂?
[tex]mass of CO_{2} =\frac{8.94 grams of O_{2} x44.01 grams of CO_{2} }{64 grams of O_{2}}[/tex]
mass of CO₂= 6.15 grams
Finally, 6.15 grams of CO₂ are formed when 8.94 grams of O₂ reacts completely.
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brainly.com/question/24741074 brainly.com/question/24653699 brainly.com/question/23871710A local supermarket organised two weeks of promotions to boost sales. The average daily sales before the campaign is $10 000, which becomes $11 000 during the promotion (average over 2 weeks). Which analysis below is not useful for evaluating whether the increase in sales is statistically significant?.
The analysis that is not useful for evaluating whether the increases in sales are statistically significant is to monitor sales for a longer period of time.
Statistical analysis helps to use different methods to properly collect data, and therefore future predictions and solutions. This is important to achieve organizational goals.
From the complete information, analysis that is not useful for evaluating whether the increases in sales are statistically significant is to monitor sales for a longer period of time.
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What is the value of a? 5 units units units 7 units.
You have a worksheet in excel that will print as 10 pages.
Considering the situation described above, to ensure that the header row is printed at the top of each page, the user should start by "going to Page Layout tab."
The other steps to ensure that the header row is printed at the top of all the 10 pages include the following steps:
Click page set up under page set up a group.Go to print titles.Click Rows to repeat at top.Select the cell that contains the text you want to repeat.Click OK.Hence, in this case, it is concluded that to print the header row is to click on the "Page Layout Tab."
The full question is:
You have a worksheet in excel that will print as 10 pages. how can you ensure that the header row is printed at the top of each page?
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What is silhak? a. The most sacred of all korean instruments b. A truly korean style that emphasizes the study of things korean c. A traditional korean male hat d. The korean word for picnic.
Answer: B
Explanation:
please correct me if I am wrong
Answer:
The answer is B
Explanation:
I got it right on my test have a lovely day!
The house un-american activities committee targeted brainly.
Answer:
?
Explanation:
Shira wants to do well on her next test so her grade in the class does not fall. This is an example of which type of motivation?.
It is an example of intrinsic motivation.
Motivation can be described as the factors that drive a person to act in a certain manner. These factors can be material, cognitive, emotional or social. Motivation can lead to either positive or negative outcomes. For example, a person motivated to succeed would spend hours studying while a person whose aim is to make quick profit can be motivated to engage in crime.
Intrinsic motivation is a type of motivation in which the driving force to carry out an activity is due to internal factors. Shira's desire to do well is not externally motivated. It is due to her desire to succeed.
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Answer:
the answer is extrinsic
Explanation:
ED 2022
The formula for density is given by p equals startfraction m over v endfraction, where p is density, m is mass and v is volume. If a substance has a mass of 27. 82 grams and a volume of 3. 6 ml, what is the most accurate density of the substance in g/ml? 7. 7 7. 7278 7. 73 0. 1.
Explanation:
so, we need to do the division :
27.82 g / 3.6 ml = 7.727777778... g/ml
so, 7.7278 is the rounded correct answer.
The principle that safer investments tend to offer.
Explanation:
Risk Return relationship
Answer:
Whole test
1. identify the risk and potential losses
2. Debt financing
3. insurance covering losses resulting from medical and hospital expenses as well as income lost form injury or disease.
4. Commercial paper
5. Equity financing
6. Bonds
7. Cash-flow management, financial control, and financial planning
8. Liability
9. insurance
10. Risk- return relationship
What is wollstonecraft’s purpose in citing rousseau’s theory? to applaud his theory to disprove his theory to agree with his theory to elaborate on his theory.
Answer: b
Explanation: .. b.. cus it is.. see what i did there
The Wollstonecraft’s purpose in citing Rousseau’s theory is to disprove his theory. The correct option is B.
What is Rousseau’s theory?Rousseau believed that modern man's enslavement to his own needs was to blame for a wide range of societal ills, including exploitation and dominance over others, as well as low self-esteem and depression.
Rousseau believed that the freedom of all citizens was the most important goal of good government.
History conjecture and moral psychology Rousseau repeatedly asserts that his worldview is centered on a single idea, namely, that humans are good by nature but corrupted by society.
Jean-Jacques Rousseau, born in Geneva in 1712, was a major political thinker of the 18th century. The purpose of Wollstonecraft citing Rousseau's theory is to refute it.
Thus, the correct option is B.
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Which are points on the graph of y = 1. 5 + ⌈x⌉? select three options.
Answer:
1.3 ( 8>7)
Explanation:
Select the correct answer from each drop-down menu. Scientists that reducing the consumption of substances that emit harmful gases would reduce pollution. Jonathan was irritated by the noise made by the loud musical procession on the street. The poor farmer was in for a pleasant surprise when he stumbled upon a pot of gold buried in his yard.
1. Scientists conjectured that reducing the consumption of substances that emit harmful gases would reduce pollution.
2. Jonathan was irritated by the incessant noise made by the loud musical procession on the street.
3. The poor farmer was in for a pleasant surprise when he fortuitously stumbled upon a pot of gold buried in his yard.
In this exercise, you're required to fill in the gap (blank) in the given sentences with the most appropriate word as follows:
1. Scientists conjectured that reducing the consumption of substances that emit harmful gases would reduce pollution.
A conjecture is a noun and it can be defined as an opinion or conclusion that is formed without sufficient evidence, fact or proof. Thus, a conjecture is formed on on the basis of an inconclusive or incomplete information.2. Jonathan was irritated by the incessant noise made by the loud musical procession on the street.
Incessant is an adjective and it can be defined as an unpleasant thing that happens continuously without interruption. Thus, it is a word that is used to describe something that is ceaseless, unending or happens without stopping.3. The poor farmer was in for a pleasant surprise when he fortuitously stumbled upon a pot of gold buried in his yard.
Fortuitously is an adverb and it is used it describe a situation or an event that happened by chance or accidentally rather than happening intentionally.Read more on fortuitously here: https://brainly.com/question/2601859
Answer:
1. Scientists conjectured that reducing the consumption of substances that emit harmful gases would reduce pollution.
2. Jonathan was irritated by the incessant noise made by the loud musical procession on the street.
3. The poor farmer was in for a pleasant surprise when he fortuitously stumbled upon a pot of gold buried in his yard.
Explanation:
A recipe says to use 3 cups of flour to make 48 cookies.
Answer: The constant of proportionality that relates the number of cups with x and the number of cookies with y is 16
The given parameters are:
Cups (x) = 3
Cookies (y) = 48
Represent the number of cups with x and the number of cookies with y.
So, the constant of proportionality (k) is calculated using:
The above equation becomes
Divide 48 by 3
Hence, the constant of proportionality is 16
Explanation:
What is the one part of a nucleotide that differs among the four different nucleotides in your group?.
Answer: The part of a nucleotide that differs from the four (4) different nucleotides is the: nitrogenous base.
What is a nucleotide?
A nucleotide can be defined as a subunit of deoxyribonucleic acid (DNA) or ribonucleic acid (RNA) that comprises a nitrogenous base.
Explanation:
What was one way in which african americans helped the revolutionary war effort?.
Answer:
They convinced Native Americans to join the army.
The crew of a garbage truck takes 5 hours to empty all the bins in one neighborhood on pickup day. The city assigned a second garbage truck to this neighborhood. During their training, it took the crew from the second truck 8 hours to empty all the bins. A table showing rate in part per hour, time in hours, and part of bins emptied. The first row shows first truck and has, startfraction 1 over 5 endfraction, t, and startfraction 1 over 5 endfraction times t. The second row shows second truck and has, startfraction 1 over 8 endfraction, t, and startfraction 1 over 8 endfraction times t. When the two crews start working together, what part of all the garbage bins will the first garbage truck empty? 0. 6 0. 5 0. 7 0. 4.
When the two crews start working together, the part of all the garbage bins that the first garbage truck will empty is; A: 0.6
We are told that the first truck empties all bins in 5 hours. Thus;
Rate of first truck per hour = ¹/₅
Second truck empties all bins in 8 hours. Thus;
Rate of second truck per hour = ¹/₈
If both trucks work together, their rate per hour is;
Combined rate per hour = ¹/₅ + ¹/₈
Combined rate per hour = ¹³/₄₀
Thus, number of hours it will take for both of them to do the whole job, we will solve as;
¹³/₄₀t = 1
where t is the time it will take both of them combined to finish the whole job.
Thus;
t = ⁴⁰/₁₃
The part that the first garbage truck will empty when they both work together = ¹/₅t = ¹/₅ * ⁴⁰/₁₃
⇒ Approximately 0.6
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Answer:
0.6
Explanation:
they will be evenly working together at 0.6
Which of the following statements are true about checked and unchecked exceptions.
There are different kinds of programs. The true statement about checked and unchecked exceptions is that the compiler ensures that the program is handling checked exceptions.
A checked exception is known to be often caught at compile time. A runtime or unchecked exception is, is simply known to be at a runtime.A checked exception is often done using re-throwing but unchecked does not need to be handled.
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Which of the following statements about checked and unchecked exceptions is true?
A. Checked exceptions are handled by the Java runtime.
B. The compiler ensures that the program is handling unchecked exceptions.
C. The compiler ensures that the program is handling checked exceptions.
D. All exceptions that are descendants of RunTime, Exception are checked exceptions.
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A binary number is to be transformed by appending three 0s to the end of the number. For example, 11101 is transformed to 11101000. Which of the following correctly describes the relationship between the transformed number and the original number?.
Numbers can be converted from one base to another base. a. The transformed number is 8 times the value of the original number.
Given that:
Three 0s are appended to a binary digit to get a new binary digit.
Using the given values, the transformation can be illustrated as follows:
Where:
represents the three appended 0s.
In binary represents 8 in decimal.
So, the above illustration can be expressed as:
This means that the new or transformed number is 8 times the original number.
Jump a little higher than you would for single-bounce jumping. Turn your wrists quickly to let the rope pass under your feet twice before your feet touch the ground. Keep your head straight and your body relaxed for good jumping form.
Answer:
What???Explanation:
I don't understand your questionGerri purchases a coupon book with discounts for her favorite coffee shop. Every coupon for the coffee shop offers the same discount. The table shows her total savings, y, based on the number of coupons, x, used from the book. What are the slope and y-intercept of the line represented by the points shown in the table? slope: 2, y-intercept: –20 slope: 2, y-intercept: 10 slope: 5, y-intercept: –20 slope: 5, y-intercept: 10.
Answer: slope: 2, y-intercept: –20
Explanation:
Y-intercept is the point at which the line intersects the y axis- meaning x = 0
From the table y = -20 when x= 0
y-intercept: -20
To find the slope
m = deltaY/deltaX = -20+10/0-5 = 2
Which are the functions of the respiratory system brainly.
Answer:
Your respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood
In the photoelectric effect a photon with an energy of 5. 3.
During photosynthesis, plants capture sunlight energy to make glucose. Then they are able to store that glucose energy. What macromolecule is being referred to?.
Answer:
starch
Explanation:
Photosynthetic autotrophs capture light energy from the sun and absorb carbon dioxide and water from their environment. Using the light energy, they combine the reactants to produce glucose and oxygen, which is a waste product. They store the glucose, usually as starch, and they release the oxygen into the atmosphere.
At the time of the photosynthesis, the plant captures sunlight and makes glucose which is stored as a form of energy. The molecule here refers to starch.
What is starch?The starch is soft, white, tasteless, and is insoluble in cold waters such as alcohol or other solvents.
The autotrophs or the plants that make their own food process sunlight that itself a fork of energy and thereby absorbed carbon and water from the environment. The combined reacts to make glucose and oxygen. Thus stored glucose is a starch.
Find out more information about the molecule.
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Which process is involved in growing crops? irrigation transportation recreation condensation.
Answer: irrigation
Explanation:
just took test on edg
Irrigation process is involved in growing crops It helps to grow agricultural crops, maintenance of landscape, re-vegetation of disturbed and dry soil and during low rainfall.
What is irrigation?Irrigation is the agricultural process of applying controlled amounts of water to land to assist in the production of crops. There are various types of irrigation- sprinkler irrigation, surface irrigation, drip irrigation, and manual irrigation.
It helps in nutritious growth of plants. The process by which water is brought to an area for use in growing crops is called irrigation. Irrigation is the process of artificial application of the desired amounts of water to the growing crops at required intervals. It helps to grow agricultural crops, maintenance of landscape, re-vegetation of disturbed and dry soil and during low rainfall.
Therefore,Irrigation process is involved in growing crops It helps to grow agricultural crops, maintenance of landscape, re-vegetation of disturbed and dry soil and during low rainfall.
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Meiosis contributes to the process of reproduction by producing what type of cell?.
How does the description of elisa’s daily routine support the author’s claim that the fast food industry seeks out teenage employees? it provides anecdotal evidence of a teenage fast food employee living like an adult. It provides analogical evidence to compare the efficiency of teenagers and adults. It provides statistical evidence of what an average fast food employee experiences. It provides testimonial evidence to describe employee abuse in the fast food industry.
There are different ways to support a claim. The description of Elisa’s daily routine support the author’s claim that It provides anecdotal evidence of a teenage fast food employee living like an adult.
The excerpt was gotten from the drama, Fast Food Nation. This was a 2006 comedy-drama film. The film was directed by Richard Linklater and its writers were Linklater and Eric Schlosser.
There are a lot of criticism of fast food industry. There are the claims of negative health effects, children targeted marketing etc. Due to the fact that Teenagers are often used in fast food sales, they tend to grow into it quickly and gradually begins to behave and live like adult.
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Answer:
its A
Explanation:
bc i looked it up
Which statements regarding triangle e f g are true? select three options.
Answer:
67 YOU THE BESTAND ANC 643
Explanation:
The formula for electrical power is. Which is the equivalent equation solved for i?.
Answer:
p/v=I
Explanation:
Sorry I’m so late
What feature or elements of the story surprised me.
Answer:
One question! Which story is it?
Explanation:
In what way is flick sticking his tongue on the flagpole an example of negative reinforcement?.
Sticking the tongue on the flagpole is an example of negative reinforcement because it produces an unpleasant sensation. In consequence, this behavior will be avoided in the future.
Negative reinforcement refers to a phenomenon that allows teaching a particular behavior.
Negative reinforcement occurs when an uncomfortable and/or unpleasant situation is taken away as a reaction to a particular stimulus.
This process (negative reinforcement) involves discarding the negative situation in order to strengthen a particular behavior.
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