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Q: How about an oxygen molecule?
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A: No. There is no meaning in saying that a stick of dynamite contains force.
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Q: Do you find the idea that you are made of recycled atoms disturbing? Why or why not?
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A: N=3 atom H=12 atom P=1 atom O=4 atom
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Q: Do 10 grams of oxygen atoms and 10 grams of iron atoms contain the same number of particles?
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Q: A pure substance made up of the same kind of atoms is called
A: A pure substance made up of the same kind of atoms is called ? we have to answer the above statement
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A: We have to write why does the balloon filled with water did not pop out like the balloon filled with…
Q: Why do metals feel cold even when they are at room temperature?
A: Metals feel cold
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A: Required : Form of energy from a nuclear reaction.
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A: Given, No = 100%= 1 T= 30min t= 2.5 hours = 150 min We know that, N= No (1/2)t/T
Q: How many O atoms of mass 15.99 amu are in 15.99 g of oxygen?
A: In 15.99 g of O, 15.99 g15.99 g/mol = 1 mole So, there is 1 mole of Oxygen in 15.99 g of O. We know…
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Q: Why hot water bottles are used for fomentation?
A: Hot water has high specific heat capacity. Due to this, the water remains hot for a longer duration.
Q: Which contains the most moles: 10.0 gg of hydrogen gas, 100 gg of carbon, or 500 gg of lead?
A: Let M be the mass of the element, Mmol be the molar mass of element.Write the expression for the…
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Q: How does our body react to hot or cold substances? Explain
A: We need to explain how our body react to hot or cold substances. Let's understand each one by one…
Q: Chromium(III) oxide reacts with hydrogen sulfide (H2S) gas to form chromium(III) sulfide and water:…
A: Solution: The Given chemical equation for the Reaction is as follows: Cr2O3(s) +…
Q: Discuss which contains more atoms: 1kg of lead or 1kg of aluminium?
A: A mass of 1 atomic mass unit is expressed in units of kilograms as,The mass of one atom of lead is…
Q: How many molecules of carbon dioxide are there in 44g of carbon dioxide?
A: Number of molecules
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Q: The specific latent heat of vaporization of a particular liquid is 2.0 x 10 Jkg, its relative…
A: Given : Specific latent heat of vaporization, LVH = 2.0x105J/Kg Relative molecular mass = 30…
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Q: write the balanced chemical equation for P+O2=P2O5
A: 2P+52O2 = P2 O5…
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Q: What is a compound? Cite three examples.
A: A chemical compound is any substance composed of molecules consisting of atoms of two or more…
Q: What is a mixture? Give three examples?
A: The mixtures are formed by mixing the two or more substances with each other without combining…
Q: Give a reason why soda drinks should be in plastic bottles rather than in aluminum cans?
A: A typical soda drink may contain acids like citric acid which can react with metallic containers and…
Discuss why equal masses of golf balls and Ping-Pong balls don’t contain the same number of balls.
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- In the 1930s, the biologist Max Kleiber studied animals' metabolic rates. He 3 4 1 expressed the ratio of the rates for two animals by the relation where "1 %3D m1 and 2 are the animals' metabolic rates and m1 and m2 are the animals' masses. a) Compare the metabolic rates of a 70-kg man and a 15-kg dog. b) Compare the metabolic rates of a 5-kg cat with that of a 50-g mouse. c) Compare the metabolic rates of a 10-g hummingbird and a 5000-kg elephant.Hi Please Help me answer this with complete solution thank you very muchProblem II There is a piece of 10 mm thick a-iron plate. This plate initially has hydrogen uniformly distributed inside with an initial concentration Co. Assume that there is no hydrogen in the air. The plate is left in the air and the hydrogen concentration varies with the time as follows: 4Co C(x, t) = (-9n²Dt\ 12 3nx sin еxp where / is the thickness of the plate. If we would like to remove 95% of the hydrogen from the plate, how long will it take when the plate is at 25 °C? The pre-exponential and activation energy for hydrogen in a-iron are 0.1 mm/s and 13,400 J/mol, respectively.
- A) What is an equation to equate KE and GPE? B) A gas is held in a container of 15 m^3 in volume and a pressure of 5 Pa. If the volume isincreased to 26 m^3 what is the pressure of the gas? c)A syringe has a volume of 5 cm^3 and a temperature of 300 k. Upon heating the syringeexpands to a volume is now 5.5cm^3, what is the temperature of the syringe?Stan Moneymaker needs 15 gallons of gasoline to top off his automobile’s gas tank. If he drives an extra eight miles (round trip) to a gas station on the outskirts of town, Stan can save $0.10 per gallon on the price of gasoline. Suppose gasoline costs $3.90 per gallon and Stan’s car gets 25 mpg for intown driving. Should Stan make the trip to get less expensive gasoline? Each mile that Stan drives creates one pound of carbon dioxide. Each pound of CO2 has a cost impact of $0.02 on the environment. What other factors (cost and otherwise) should Stan consider in his decision-making?Solve the problem with a complete step by step process/solution.
- Consider a man who has 20 kg of body fat when he goes on a hunger strike. Determine how long he can survive on his body fat aloneChromium(III) oxide reacts with hydrogen sulfide (H2S) gas to form chromium(III) sulfide and water: Cr2O3(s) + 3H2S(g)→Cr2S3(s) + 3H2O(l) To produce 681 g ofCr2S3 (a) how many moles ofCr2O3are required? (b) how many grams ofCr2O3are required?The average American daily diet consists of 2,400 kilocalories. A kilocalorie contains 4814 J. Assume that this daily intake of kilocalories is completely metabolized at a uniform rate over a 24 hour period. What is the average power generation of the average American over the 24 hour period? Report your answer in units watts (W). I recieved 4814W per 24 hours but am unsure if I am correct.
- how to solve PE and KE without given mass?You toss two six-sided dice. What is the total number of ways in which you can obtain the following? (a) a 6 (b) an 11 What If? If you now rolled three six-sided dice, what would be the number of ways in which you can obtain the following? (c) a 15 (d) a 9 Submit AnswerDo 10 grams of oxygen atoms and 10 grams of iron atoms contain the same number of particles?