CHEMISTRY HIGH SCHOOL

How does the work needed to lift an object and the gravitational potential energy of the object compare? OThey are equal. OThe work is greater. OThe work is less. OThe comparison dependş on the height.○ they are equal
○ the work is greater
○ the work is less
○ the comparison depends on the height

Answers

Answer 1

Answer:

Answer:

They are equal

Explanation:

took the test

Answer 2

Answer:

Answer:

ITS A JUST FINISHED

Explanation:

Related Questions

Are these answers correct?1. A gas occupies 30 L at 760 mm Hg. What is its volume at 350 mm Hg? P1*V1 = P2*V2 760 mm Hg *30 L = 350 mm Hg * V2V2 = 22800 mm Hg*L/350 mm HgV2 = about 65.14 L2. A gas occupies 500 mL at 1 atm. What is its pressure if the volume becomes 1500 mL?P1*V1 = P2*V21 atm*500 mL = P2*1500 mL500 atm*mL/1500 mL = P2P2 = 1/3 atm3. If a gas occupies 250 mL at 25°C, what will its volume be at 57°C? 25°C + 273 = 298°K; 57°C + 273 = 330°KV1/T1 = V2/T2250 mL/298°K = V2/330°K0.84 mL/k*330°K = V2V2 = about 276.85 mL4. What was the original temperature of a 2 L sample of gas if it initially had the volume 5 L at 27°C? 27°C + 273 = 298°KV1/T1 = V2/T25 L/298°K = 2 L/T22 L/(0.017 L/K)= T2T2 = 119.2°K = -153.8°C 5. At what pressure would 100 mL of a gas be found if it began at 500 mL at 2.5 atm?P1*V1 = P2*V2 2.5 atm*500 mL = P2*100 mL125 atm*mL/100 mL = P2P2 = 1.25 atm6. What is the volume of a gas at 275 mm Hg if it occupied 750 mL at 1000 mm Hg?P1*V1 = P2*V21000 mm Hg*750 mL = 275 mm Hg*V2750000 mm Hg*mL/275 mm Hg = V2V2 = about 2727. 27 mL7. A gas occupies 60 L at 250°K and 1 atm. What is its volume at 250°C and 1.5 atm?250°C + 273 = 523°KP1*V1/T1 = P2*V2/T21 atm*60 L/250°K = 1.5 atm*V2/523°K0.24 (atm*L/K)*523°K = 1.5 atm*V2125.52 (atm*L)/1.5 atm = V2V2 = 83.68 L8. What is the final temperature in Celsius of a gas occupying 3.25 L at 750 mm Hg if it occupied 2250 mL at 37°C and 600 mm Hg? 37°C + 273 = 310°K; 2250 mL = 2.25 LP1*V1/T1 = P2*V2/T2600 mm Hg*2.25 L/310°K = 750 mm Hg*3.25 L/T22437.35 mm Hg*L/ (4.35 mm Hg*L/K) = T2T2 = 559.69°KT2 = about 286.69°C
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What two sub-atomic particles are located in the nucleus of the atom?

Answers

Protons and Neutrons. Also star this answer please :)

Neutrons (netral charge) and Protons (positive charge) are in the nucleus wile Electrons (begitive charge) are outside the nucleus of an atom.

Which organic compound is most soluble in water? A) ethyne B) benzene C) butane D) ethanol

Answers

I think it's between B) Benzene and C) Butane

Why does copper have a high melting point?

Answers

The ability to be drawn into thin sheet is called malleability. The ability to be drawn into thin wires is called ductility. Copper have a high melting point due to metallic bonding.

What is metallic bonding?

Metallic bonding is a type of chemical bonding that rises from the electrostatic attractive force between conduction electrons and positively charged metal ions. Metallic bonds are more more strong than covalent bond and ionic bond

Metallic bonds is between metals and metals, have the malleable and ductile property. Elements which have metallic bonding have high melting and boiling point. Since copper is a metal, it form strong metallic bond with itself. So, copper have a high melting point.

Therefore, copper have a high melting point due to metallic bonding.

To know more about metallic bonding, here:

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copper has a high melting point - basically put - is because the bond of copper atoms (held together by electro statical attraction) to themselves is so strong, only a very high temerature can break the bond.

What are the efficient things needed for a village

Answers

Answer:

Those aspects which are something a village needs are specified beneath.

Explanation:

Things being equally necessary to make living simpler and therefore more enjoyable. The government has promised to continue providing basic facilities to either an unpopulated location, including such roads, drinkable water, as well as electric power.
Therefore, throughout the village, certain things accessible with maximum variety and quality that have become the basic requirements for this human existence.

What is the major difference between a solution and an ordinary mixture?

Answers

An ordinary mixture can be separated without using chemicals, a solution cannot.

The major difference between a solution and an ordinary mixture is that solution is homogeneous and an ordinary mixture is heterogeneous.

Which of the following is a physical or chemical characteristic of a mineral?

Answers

Minerals physical characteristics are hardness,luster,the way it’s solid and chemical would be the way the color changes and it’s density

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The density of aluminum is 2.70 g/cm3. What is the mass of 235 cm3 of aluminum? 634.5 g635 g635 g/cm3634.5 ml