3 years ago

What are the three steps scientist take to evaluate a scientific explanation

Chemistry

1 answer:

fenix001 [56]3 years ago

8 0

Hypothesis, experiment, and conclusion

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When liquids are poured in a graduated cylinder the liquid will stick to the sides and create a curved line

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What is the correct electron configuration of the element with atomic number 20?

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D is the correct answer

s orbital contain 2

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3 years ago

An atom with an atomic number of 10 and a mass number of 24 would have ________.

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An atom with an atomic number of 10 and a mass number of 24 would have 14 neutrons.

<h3>What is atomic number and mass number?</h3>

The term atomic number, conventionally denoted by the symbol Z.

Atomic number indicates the number of protons present in the nucleus of an atom, which is also equal to the number of electrons in an uncharged atom.

The mass number of a given atom is defined by the number of protons and neutrons present in the nucleus. In simple,

Protons + Neutrons = Mass Number

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2 years ago

Aqueous hydrochloric acid reacts with aqueous sodium sulfite to form aqueous sulfurous acid and aqueous sodium chloride . Write

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Answer:

Balanced reaction: $Na_{2}SO_{3}(aq)+2HCl(aq)\rightarrow H_{2}SO_{3}(aq)+2NaCl(aq)$

Explanation:

It is an example of double displacement reaction.
Here anions and cation of two reagents interchange between themselves.

2 molecules of HCl (hydrochloric acid) reacts with 1 molecule of $Na_{2}SO_{3}$ (sodium sulphite) to produce 2 molecules of NaCl (sodium chloride) and 1 molecule of $H_{2}SO_{3}$ (sulphurous acid)
Balanced reaction: $Na_{2}SO_{3}(aq)+2HCl(aq)\rightarrow H_{2}SO_{3}(aq)+2NaCl(aq)$

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3 years ago

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Arrhenius Base

Bronsted-Lowry Base

Explanation:

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