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Nuetrik [128]
4 years ago
8

The wrecking ball has energy that can be converted from one form to another. When the wrecking ball hangs motionless several sto

ries up, it has no _________ energy, but a lot of ___________ energy.
Chemistry
2 answers:
maw [93]4 years ago
8 0

Kinetic energy; Potential energy

katrin [286]4 years ago
7 0

If the wrecking ball was raised three stories, the potential energy would be most affected. Gravitational potential energy is stored energy based upon the object's mass and position. Kinetic energy is the energy of motion and is dependent upon the mass and velocity of the object. The height of the wrecking ball has no effect on thermal or chemical energy.

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Find the number of moles of argon in 452 g of argon.
andrey2020 [161]

Answer: 13.31 moles.

Explanation: So take 452 grams of Argon and multiply by the molar mass of Argon. Your units will cancel out, leaving you with moles of Argon.

6 0
3 years ago
Which is a characteristic of mixtures?
anygoal [31]

Answer: They can be separated by physical processes

Explanation:

Element is a pure substance which is composed of atoms of similar elements.It can not be decomposed into simpler constituents using chemical reactions.Example: Copper Cu

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example: water H_2O

Mixture is a substance which has two or more components which do not combine chemically and do not have any fixed ratio in which they are present.they can be separated by physical processes. Example: salt in water. It can be separated by evaporation which is a physical process.

5 0
3 years ago
Match these people to the discoveries or work that they are known for. Galileo developed geocentric theory Aristotle developed h
vfiekz [6]

Answer:

Galileo: "Father of Modern Science."

Aristotle: Geocentric theory." (The planests revolves around the earth.)

Torricelli: Invented the barometer. (An instrument which measures pressure.)

Copernicus: Heliocentric theory. (Aka, the planets revolves around the sun.)

Vesalius: Examined the inner workings of the human body

Newton: Developed law of universal gravitation.

Nightingale: Founded nursing profession.

Celsius: Developed metric temperature scale

I hope this helps! Thanks:)

7 0
3 years ago
3. How do we get mass from moles?
maria [59]
I think the answer is B
7 0
3 years ago
I will give you a brainliest.
Zina [86]

answer= 0.912 L or 912 mL

M(KClO3) =  122.55 g/mol

3.00 g KClO3 * 1  mol/122.55 g = 3.00/122.55 mol =0.02449 mol                

                          2KCIO3(s)=2KCI(s) + 3O2(g)

from reaction      2 mol                         3 mol

given                   0.02449 mol              x

x = 0.02449*3/2 =0.03673 mol O2

T = 24 + 273.15 = 297.15 K

PV = nRT

V= nRT/P = (0.03673 mol*0.082057 L*atm/K*mol*297.15 K)/0.982 atm =

= 0.912 L or 912 mL

8 0
3 years ago
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