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neonofarm [45]
3 years ago
14

How do you pass sience

Chemistry
1 answer:
MariettaO [177]3 years ago
8 0

Answer:

Listen in Class. The first step to passing any test is to begin preparing right there in the classroom. ...

Review Lab and Lecture Notes. ...

Know the Vocabulary. ...

Develop a Study Schedule. ...

Take Advantage of Online Study Resources.

Explanation:

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Help me answer this chemistry question. thank you!
mixas84 [53]

Answer:

electrons are neutral

Explanation:

i dont know if this is correct

8 0
3 years ago
How can models demonstrate theories of our expanding universe?​
Scilla [17]

Answer:

Explanation:Puesto que la energía causante de la aceleración del espacio-tiempo no ha podido ser observada en forma directa, se ha dado en llamarla energía oscura. Dos candidatos teóricos que podrían hacer las veces de esta energía son una constante cosmológica no igual a cero (que pudo haber causado la inflación cósmica) y una energía repulsiva más general llamada quintaesencia.

7 0
2 years ago
- The subatomic particle possessing the largest
Ierofanga [76]

Answer:

B. electrons possess the largest charge-to-mass ratio among the subatomic particles listed in the four choices.

Explanation:

Consider the mass of each particle. Express the masses in atomic mass units:

  • Protons: approximately 1.007 amu each;
  • Neutrons: approximately 1.009 amu each;
  • Electrons: approximately 0.0005 amu each.

Similarly, consider the charge on each particle. Express the charges in multiples of the fundamental charge:

  • Protons: +1 e;
  • Neutrons: 0;
  • Electrons: -1 e.

Calculate the charge-to-mass ratio for the three species:

  • Protons: approximately \rm 0.99\; e\cdot amu^{-1};
  • Neutrons: 0;
  • Electrons: approximately \rm 1,800\;e \cdot amu^{-1}.

Almost all nuclei contain protons and neutrons. The only exception is the hydrogen-1 nucleus, which contains only one proton and no neutron. The mass of the nucleus is approximately the same as the sum of its components' masses. The extra neutron will only add to the mass of the nucleus (the denominator) without contributing to the charge (the numerator.) As a result, the charge-to-mass ratio of nuclei will be positive but no greater than the charge-to-mass ratio of protons.

Among the particles in the four choices, the charge-to-mass ratio is the greatest for electrons.

6 0
3 years ago
What happens to the energy absorbed during an endothermic reaction
LuckyWell [14K]

Answer:

more energy is absorbed when the bonds in the reactants are broken

4 0
2 years ago
______ contributes to the nitrogen cycle by removing nitrogen from the air and converting it into a form that is usable by plant
umka21 [38]

Answer: Bacteria✅

Explanation:

4 0
2 years ago
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