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Dmitry [639]
2 years ago
8

⚠️⚠️ ⚠️⚠️

Chemistry
2 answers:
kolbaska11 [484]2 years ago
8 0

<em />

_____________________________________________________

おもりを垂直に持ち上げて、重力ポテンシャルエネルギーを取得します。おもりを垂直に持ち上げて、重力ポテンシャルエネルギーを取得します。力が取り除かれると、物体は地面に落下し、重力ポテンシャルエネルギーが落下する物体の運動エネルギーに伝達されます。私が助けて、良い一日を過ごせることを願っています!

Anastaziya [24]2 years ago
3 0

Answer/Explanation: A weight lifted vertically to acquire gravitational potential energy. A weight lifted vertically to acquire gravitational potential energy. If the force were to be removed, the object would fall back down to the ground and the gravitational potential energy would be transferred to kinetic energy of the falling object.

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If fluorine 20 undergoes beta decay , what will it become ?
e-lub [12.9K]
Fluorine 20 (F - Atomic number 9 and atomic mass 20). Firstly we need to know what is beta decay. Beta decay occurs when one neutron changes into a proton and an electron therefore the atomic mass will remain the same as even though we loose a neutron it is replaced by a proton, the atomic number is always raised by 1 when one beta decay occurs. The produced electron is shot out of the nucleus at an incredible speed. This speedy electron we call a beta particle.

Ok now the reaction.

 20       20        0
F  -> Ne    +     e
 9         10       -1

Remember the atomic number determines the nature of the element ( i.e what elemnt it is).
Hope this helps :).
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3 years ago
Macromolecules aren't sticking with me. I need to memorize the basic and complex sugars.
givi [52]

Answer:

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3 0
2 years ago
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Which scientist was the first to use the telescope in astronomy? Copernicus Newton Kepler Galileo
coldgirl [10]

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8 0
3 years ago
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erastovalidia [21]
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What mass of oxygen contains the same number of molecules as 42g of nitrogen?
lakkis [162]

Answer:

Given: 42 g of N2

Solve for O2 mass that contains the same number of molecules to 42 g of N2.

Solve for the number of moles in 42 g of N2

1 mole of N2 = (14 * 2) g = 28 g so the number of moles in 42 g of N2 is equal to 42 g / 28 g per mole = 1.5 moles

Solve for mass of 1 mole of oxygen

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Solve for the mass of 1.5 moles of oxygen

mass of 1.5 moles of O2 = 32 g per mole * 1.5 moles

mass of 1.5 moles of O2 = 48 g

So 48 g of O2 contains the same number of molecules as 42 g of N2

3 0
3 years ago
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