3 years ago

Describe the structure of the beryllium atom.

1 answer:

6 0

Atoms consist of electrons surrounding a nucleus that contains protons and neutrons. Neutrons are neutral, but protons and electrons are electrically charged. Protons have a relative charge of +1, while electrons have a relative charge of -1. The number of protons in an atom is called its atomic number.

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In which of these statements are protons, electrons, and neutrons correctly compared?

Goryan [66]

the second statement is the correct one quarks are needed to balance charges in all subatomic particles such as neutrons, protons and electrons

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3 years ago

If the mass of a liquid reactant is 10g and the mass of a powder reactant is 5g then what should the mass of the product be acco

guapka [62]

Answer:15g

Explanation:

According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

10g + 5g ➡️ 15g

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3 years ago

Calculate the pH of 0.50M H2S

-BARSIC- [3]

I got that pH=3.65 using the fact that Ka=[H⁺][A⁻]/[HA] at equilibrium. In the ice table, I stands for initial, C stands for change, and E stands for equilibrium.

I hope this helps. Let me know if anything is unclear.