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A sample of gas occupies 7.80 liters at 425°C? What will be the volume of the gas at 35°C if the pressure does not change? 4.65 liters 3.65 liters 3.44 liters 7.65 liters 5.89 liters



A sample of gas occupies 7.80 liters at 425°C? What will be the volume of the gas at 35°C if the pressure does not change? 4.65 liters 3.65 liters 3.44 liters 7.65 liters 5.89 liters

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A chemical or physical change that takes in heat from its surroundings is an exothermic process an explosion an endothermic process a phase change



A chemical or physical change that takes in heat from its surroundings is an exothermic process an explosion an endothermic process a phase change

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What was the cause of the brief recession in the United States in 1918 and 1919? A) the flood of refugees from war-torn Europe B) a cut in income taxes C) a decrease in the labor pool D) the change from wartime to peacetime production


the cause of the brief recession in the United States in 1918 and 1919 was: D) the change from wartime to peacetime production

Before entering this time period, a large portion of united states’  production was focused on war machines, weapons, and supplies to accommodate world war I. After the war ended, many of the companies that produce these products were closed and united states entered a brief recession because of it.

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What kind of change occurs when salt dissolves in water a.) solution change b.) physical change c.) chemical change d.) substance change



What kind of change occurs when salt dissolves in water a.) solution change b.) physical change c.) chemical change d.) substance change

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How does the narrator change at the end of the story?



How does the narrator change at the end of the story?

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How does the narrator change at the end of the story?



How does the narrator change at the end of the story?

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Research conducted on what happens when atoms get excited has helped in the identification of the atoms in the universe. What happens when atoms get excited? Atoms change into a particular shape. Atoms lose subatomic particles. Atoms produce a particular odor. Atoms release a particular color of light..


Answered by answersmine AT 22/10/2019 – 02:54 AM

I believe the correct answer is the last option. When atoms get excited, atoms would release a particular color of light. When atoms gets excited, the electrons would move from a lower level to a higher level. However, this state is only short-lived and happens only in a split second then it goes back to its original level immediately. Going back to the lower level would release some extra amount of energy which is being released as heat or, oftentimes, as light in the form of electromagnetic energy or the particle photons. Thus, it releases a specific color of light depending on the wavelength of the light. 

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The graph represents function 1 and the equation represents function 2: A graph with numbers 0 to 4 on the x-axis and y-axis at increments of 1. A horizontal straight line is drawn joining the ordered pairs 0, 3 and 4, 3. Function 2 y = 6x + 1 How much more is the rate of change of function 2 than the rate of change of function 1? A. 5 B. 6 C. 7 D. 8



The graph represents function 1 and the equation represents function 2: A graph with numbers 0 to 4 on the x-axis and y-axis at increments of 1. A horizontal straight line is drawn joining the ordered pairs 0, 3 and 4, 3. Function 2 y = 6x + 1 How much more is the rate of change of function 2 than the rate of change of function 1? A. 5 B. 6 C. 7 D. 8

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I think its A can someone help me? Which of the following will not change? Scientific law Scientific theory Scientific hypothesis Scientific experiment



I think its A can someone help me? Which of the following will not change? Scientific law Scientific theory Scientific hypothesis Scientific experiment

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What chronology is described in the excerpt? A. the country’s recovery from the 2004 tsunami. B. the initial successes of World Bike Relief C. a life transformed by bicycle ownership D. a volunteer experience with World Bike ReliefRead this excerpt from Wheels of Change by Sue Macy.In efforts to restart the lives of those devastated by the crushing waves of the 2004 Indian Ocean tsunami, my husband, F. K. Day, and I founded World Bicycle Relief (WBR). WBR works to provide access to independence and livelihood through the power of bicycles. During our work in Sri Lanka in 2005-2006, we put more than 24,000 new bicycles into the hands of those rebuilding their lives. Since 2006, we have moved into Africa where we currently work in Zambia, Zimbabwe, and Kenya addressing oppressive poverty and the AIDS pandemic by mobilizing volunteer caregivers, students, and entrepreneurs with bicycles.


Answered by answersmine AT 22/10/2019 – 03:02 AM

The chronology that is described in the excerpt Wheels of Change by Sue Macy is a life transformed by bicycle ownership. The answer is letter C. It is shown in the excerpt above that the couple tried their best to help the people in Sri Lanka get on with their lives by helping them own a bicycle which will produce energy at a much lower cost.

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What does it mean to adapt to a new climate? A. to leave one climate and travel to another B. to change behaviors in order to meet a climate’s challenges C. to change from one species to another because of the climate D. to go a long period of time without rain in a climate



What does it mean to adapt to a new climate? A. to leave one climate and travel to another B. to change behaviors in order to meet a climate’s challenges C. to change from one species to another because of the climate D. to go a long period of time without rain in a climate

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Read the excerpt from Chapter 5 of Wheels of Change. These traits led commentators to worry that the differences between the sexes were being blurred, a fear that was reinforced as the four newest states—Wyoming, Colorado, Utah, and Idaho—granted women the right to vote in the 1890s. Would the bicycle help bring about a new kind of equality between men and women? Elizabeth Cady Stanton and her colleagues certainly hoped so. At any rate, the image of a female cyclist quickly became associated with efforts to win more rights for women. What conclusion does Macy draw in this synthesis of ideas? Women were granted the right to vote in four states as a direct result of the bicycle’s invention. Female cyclists were quickly becoming associated with efforts to win more rights for women. Stanton and her colleagues hoped women cyclists would join their fight for women’s rights. Wyoming, Colorado, Utah, and Idaho were home to the highest percentage of women cyclists.


Female cyclists were quickly becoming associated with efforts to win more rights for women.

At the end of the passage, usually where a conclusion is stated, it says that the image of a female cyclist was becoming a symbol for women’s rights. The passage does not tell the reader anything about the percentage of women cyclists. While it does tell the reader about women being granted the right to voted, the connection between that and the bicycle is that it blurs the differences between the sexes. Both men and women were riding bicycles and they were both voting. There is also nothing in the passage about women cyclists as a group joining or not joining the women’s rights movement.

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What verb tense needs to be change in this sentences Jem loses control during his back swing, drops the ball from his fingers, and scores.



What verb tense needs to be change in this sentences Jem loses control during his back swing, drops the ball from his fingers, and scores.

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In this passage, Sue Macy quotes Ellen B. Parkhurst. What is Parkhurst’s viewpoint on the topic? Biking is a social activity for girls. Biking is a healthy activity for girls. Biking is an immoral activity for girls. Biking is a dangerous activity for girls. Ellen B. Parkhurst, wife of another New York minister, celebrated the advantages of bicycle riding in Washington's Evening Times. "Of course I do not believe that bicycling is immoral," she said. "A girl who rides a wheel is lifted out of herself and her surroundings. She is made to breathe purer air, see fresher and more beautiful scenes, and get an amount of exercise she would not otherwise get. All this is highly beneficial." —Wheels of Change, Sue Macy



In this passage, Sue Macy quotes Ellen B. Parkhurst. What is Parkhurst’s viewpoint on the topic? Biking is a social activity for girls. Biking is a healthy activity for girls. Biking is an immoral activity for girls. Biking is a dangerous activity for girls. Ellen B. Parkhurst, wife of another New York minister, celebrated the advantages of bicycle riding in Washington’s Evening Times. “Of course I do not believe that bicycling is immoral,” she said. “A girl who rides a wheel is lifted out of herself and her surroundings. She is made to breathe purer air, see fresher and more beautiful scenes, and get an amount of exercise she would not otherwise get. All this is highly beneficial.” —Wheels of Change, Sue Macy

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Which of these outcomes is conclusive evidence that mixing sugar in water is a physical change



Which of these outcomes is conclusive evidence that mixing sugar in water is a physical change

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Giovanni created this chart to study for an exam. Compound I uses ———————————————————————————————————— Sodium Hydroxide (NaOH) Plastic, soap, and paper production ———————————————————————————————————— Iron oxide (FeO) Toothpastes and antacids ———————————————————————————————————— Calcium chloride (caCl2) Snow removal ———————————————————————————————————— Calcium carbonate (CaCO3) Dark pigment in makeup Which best describes how to correct the error in the chart? A) Remove “plastics” from the uses for sodium hydroxide. B) Swap the uses for iron oxide and calcium carbonate. C) Change the use for calcium chloride to “used in preservatives.” D) Add “de-ice roads” to uses for calcium carbonate.


Answer;

B) Swap the uses for iron oxide and calcium carbonate.

Explanation;

  • Calcium carbonate is a compound that is naturally found in marble, chalk and limestone. It is used in pharmaceutical applications as a cost effective dietary calcium supplement, and also used in antacids.
  • Calcium carbonate is also found in products such as baking powder, tooth paste, and wine among others.
  • Iron oxides are compounds of iron that are used as coloring agents in some cosmetics. The forms of iron oxides used in cosmetics are normally synthetic.
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Describe two ways he could change the metal physically and two ways he could change the metal chemically to try to identify it.


Answered by answersmine AT 22/10/2019 – 03:18 AM

Physical change is a change that occurs in a substance that does not change the identity of the substance. It does not alter the chemical structure of the molecules ehile chemical change involves the breaking of the bonds in the substance forming new substance. To identify a metal physically, we can use properties like their boiling and melting points. We can determine at what temperatures these metals melt or boil then from literature we compare the values. Another properties that can be looked upon to are hardness, color and density. For chemical methods, we can allow it to react with substances, that will produce precipitates containing the metal in question. Also, we can use other methods like titration method. All chemical methods involves the use of chemical reactions.

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A clipboard cost $2.23.It cost $0.58 more than a notebook.Lisa bought two clipboards and one notebook.She paid with a ten dollar bill.How much change does Lisa get?Use a tape diagram to show your thinking.

Lisa gets a change amount of fbox {begin bf $ 3.89\end{minispace}} when she pays a ten-dollar bill for two clipboards and a notebook.

Further explanation:

It is given that the cost of a clipboard is $ 2.23.

Also, it is known that the clipboard costs $text{ }0.58 more than a notebook so the cost of one notebook is calculated as,

fbox {begin\\begin{aligned}text{Cost of a notebook}&= 2.23-0.58\&=1.65end{aligned}end{minispace}}

Lisa bought two clipboards and one notebook then the total cost for items bought is obtained as the sum of cost of two clipboard and cost of one notebook.

fbox {begin\\begin{aligned}text{Total cost of two clipboard and one notebook}&= 2.23+2.23+1.65\&=6.11end{aligned}end{minispace}}

Lisa paid a ten dollar bill for the purchase of two clipboard and one notebook, so the total change she should get back is obtained as the difference of total cost of two clipboard and one notebook from the total paid price.

The tape diagram for the price paid for two clipboards and one notebook that Lisa bought is as shown in Figure 1 (attached at the end).

Therefore, the change that Lisa gets back is calculated as,

boxed{begin{aligned}text{Change that Lisa gets}&= 10-6.11\&=3.89end{aligned}}

Thus, the change amount that Lisa gets after she paid ten dollar for two clipboard and one notebook is fbox {begin bf $ 3.89\end{minispace}}.

Learn more:  

1. Linear equation application brainly.com/question/788903

2. To solve one variable linear equation brainly.com/question/1682776

3. Fractional expression simplification brainly.com/question/894273

Answer details

Grade: Middle school  

Subject: Mathematics  

Chapter: Simplification

Keywords: notebook, clipboard, ten-dollar bill, paid, costs, Lisa, bought, $2.23, $0.58, $4.46, change amount, total cost, amount, two clipboards.

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HELP PLEASE! 3 SCIENCE QUESTIONS! I'm stuck on my last 3. #1 Compare and contrast chemical change and physical change. #2 Compare and contrast a gas and a plasma. #3 What state of matter has the electrons separated from the nuclei of the atoms? Gas Solid Liquid Plasma



HELP PLEASE! 3 SCIENCE QUESTIONS! I’m stuck on my last 3. #1 Compare and contrast chemical change and physical change. #2 Compare and contrast a gas and a plasma. #3 What state of matter has the electrons separated from the nuclei of the atoms? Gas Solid Liquid Plasma

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#1 Compare and contrast chemical change and physical change. #2 Compare and contrast a gas and a plasma.


Answered by answersmine AT 22/10/2019 – 03:27 AM

In a physical reaction, no bonds are broken, and the reaction can be reversed mechanically, while in a physical reaction, two or more substances are combined, and bonds are broken to form completely new substances. Plasma is basically just super-heated gas.

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Spending that can change from year to year is known as what spending?


I believe the answer is: discretionary spending.

discretionary spending refers to a form of government spending which created because of the policies that implemented by the government. Since every presidency tend to have their own unique policies from one to the other, the amount of discretionary spending would also changed form year to year.

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How did European imperialism change over the course of the 19th century



How did European imperialism change over the course of the 19th century

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Read the following dialogue: Mark: I deserve a raise! Boss: Why do you deserve a raise? Mark: Both Rachel and Soledad make three dollars more an hour than I do, so I should make the same as they do. Boss: Both Rachel and Soledad have worked here longer than you and always receive top evaluations. Mark: Well, then I deserve a raise because I have a wife and two children at home, one of whom has a very expensive medical condition. Boss: No. If Mark wants to try again and convince his boss that he deserves a raise, how should he change his argument?



Read the following dialogue: Mark: I deserve a raise! Boss: Why do you deserve a raise? Mark: Both Rachel and Soledad make three dollars more an hour than I do, so I should make the same as they do. Boss: Both Rachel and Soledad have worked here longer than you and always receive top evaluations. Mark: Well, then I deserve a raise because I have a wife and two children at home, one of whom has a very expensive medical condition. Boss: No. If Mark wants to try again and convince his boss that he deserves a raise, how should he change his argument?

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Some life forms move so slowly that their movement cannot be detected by normal observation. The best way to determine any movement is by placing a mark at some point, and observing any change in position from it. Why is this true?



Some life forms move so slowly that their movement cannot be detected by normal observation. The best way to determine any movement is by placing a mark at some point, and observing any change in position from it. Why is this true?

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Eric states that the slopes of perpendicular lines are opposite reciprocals (i.e. that the slope of one is equal to the negative of the reciprocal of the other), and Aviva states that the product of the slopes of perpendicular lines is −1. Who is correct? Why? Explain your reasoning with an example. If one of the lines is vertical and the other one is horizontal, how would your answer change?


Answered by answersmine AT 22/10/2019 – 03:50 AM

Eric’s statement is correct that the slopes of the perpendicular lines are opposites reciprocal with each other compared to Aviva’s. Aviva’s statement is correct but is not usually the case. An example is that when you are given these functions such as y = -2x + 3 and y = 1/2x + 4. The coefficients of the x variable are 2 and negative 1/2. The slopes must be in opposite signs so that the two functions will intersect at a common point and will form a ninety degree angle. This is the very basis of a perpendicular line because if both lines have the same slopes, then both lines are just parallel with each other, they cannot intersect.

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