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3 years ago

What are atoms?

Chemistry

2 answers:

user100 [1]3 years ago

7 0

Answer:

The smallest particle of a chemical element can be defined as an atom.

Explanation:

The number of protons in one atom of an element determines the atom's identity, and the number of electrons determines its electrical charge.

a single electron or one of two or more electrons in the outer shell of an atom that is responsible for the chemical properties of the atom is known as valence electrons.

An atom's reactivity is its tendency to lose or gain electrons. ... This is because they have one outer electron and losing it gives them the stability of a outer electron shell as the next level... The reactivities of elements can be predicted by periodic trends.

Sergio039 [100]3 years ago

3 0

Answer:

Hope this helps! :^)

Explanation:

Atoms are the basic building blocks of ordinary matter. Atoms can join together to form molecules, which in turn form most of the objects around you.

The number of protons in one atom of an element determines the atom’s identity, and the number of electrons determines its electrical charge.

Valence electrons: an electron of an atom, located in the outermost shell (valence shell) of the atom, that can be transferred to or shared with another atom.

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What mass of oxygen is required to completely react with 2 moles of ch4

Firlakuza [10]

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3 years ago

Do you think the amount of fat will affect its melting point?

antoniya [11.8K]

The amount of fat will affect its melting point

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3 years ago

at a particulat temperature, a smaple of pure water has a Kw of 7.7x10-14. what is the hydroxide concentration of this sample

ycow [4]

Answer: The hydroxide concentration of this sample is $3.85\times 10^{-7}$

Explanation:

When an expression is formed by taking the product of concentration of ions raised to the power of their stoichiometric coefficients in the solution of a salt is known as ionic product.

The ionic product for water is written as:

$K_w=[H^+]\times [OH^-]$

$7.7\times 10^{-14}=[H^+]\times [OH^-]$

As $[H^+]=[OH^-]$

$2[OH^-]=7.7\times 10^{-14}$

$[OH^-]=3.85\times 10^{-7}$

Thus hydroxide concentration of this sample is $3.85\times 10^{-7}$

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3 years ago

Why should we not throw water in petrol fire

kaheart [24]

~Hello there! ^_^

Your question: Why should we not throw water in petrol fire..?

Your answer: We should not throw water in the petrol fire because oil, petrol etc are a bit weightless than water so it continues to flow over the water.

Hope this helps!

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3 years ago