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Mars2501 [29]
3 years ago
10

Plsss help with this ASAP TT

Chemistry
1 answer:
PSYCHO15rus [73]3 years ago
7 0

Answer: lithium- 3 protons, 3 electrons, 3 neutrons

Oxygen- nucleon no. 16, Atomic no. 8, 8 protons, overall charge (-2)

Sorry I don't the others. Hope this helps

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Classically, if you put a particle in a box, it can have Zero kinetic energy (ie the particle is not moving). But a quantum part
OLga [1]

Answer:

Electron = 6.030 × 10^-21 J.

Proton = 3.37 × 10^-23J.

Methane = 2.06 × 10^-24J.

Gold = 1.67 × 10^-25J.

Explanation:

Without mincing words let's dive straight into the solution to the question above.

One an energy formula will be used in solving this question. This formula is given below;

Energy, E = (n^2 × h^2)/8 × m× L^2.

Where m = mass, n = number of energy level, h = planck's constant and L = length.

Therefore, for electron;

Energy, E = (6.626 × 10^−34)^2/ ( 8 × 9.1 × 10^-31 × [1 x 10^-9m]^2 =6.030× 10^-21J.

For proton;

Energy, E = (6.626 × 10^−34 )^2 / (8

× 1.626 × 10^-27 × [1 × 10^-9]^2) = 3.37 × 10^-23J.

For methane;

Energy, E = (6.626 × 10^-34) ^2/ ( 8 × 2.66 × 10^-26 × [1 × 10^-9]^2 = 2.06 × 10^-24J.

For Gold;

Energy, E =( 6.626 × 10^−34)^2 / ( 8 × 3.27 × 10^-25 × [ 1 × 10^-9]^2) = 1.67 × 10^-25J.

NB: n = 1 = Zero Point Energy.

7 0
3 years ago
What is the term for a solid that forms when two liquids are mixed together
Paladinen [302]
Answer: a precipitate.

Justification:

When two liquids are mixed together, their constituents may react chemically, forming new products whose chemical properties are different from those of the original constituents of the mixtures. 

Then, some of the products formed may be insoluble in the mix. In this case is when the precipitate (solid that cannot stand in the solution) will get formed.

The formation of  a precipitate is a clear signal that a chemical reaction has taken place between some constituents (elements or compounds) of the mix.

One example of this situation is the combination of a solution of baking soda, NaHCO₃(aq), and a solution of calcium chloride, CaCl₂ (aq).

Those two solutions are clear, and when combined will form a solid (precipitate) which is calcium carbonate, CaCO₃ (s). The calcium carbonate precipitates because it is not soluble in the mix.










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4 years ago
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What element does this atomic model represent?
oee [108]

yo que se wey nose una particula

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3 years ago
I know this is personal but I need some advice, grab some popcorn this is going be a long story.
UNO [17]

Answer:

email me 4

Explanation:

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3 years ago
If I divide 6,048 by divided by 8 what does it equal
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<span>If I divide 6,048 by divided by 8 what does it equal 

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