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Murljashka [212]
3 years ago
14

Fill in the blank, please help. (55 points)

Chemistry
1 answer:
Degger [83]3 years ago
7 0
The answer would be evaporation takes place at the surface of an ocean, lake, stream, or other body of water
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The atomic radius increases down a column (group) and decreases along a row
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Which unit conversion allows you to convert 21.0 gallons into milliliters?
Ulleksa [173]

Answer:

Explanation:

we are given

there are in 0.073 gallons

we can see that there are two non-zero places after decimals

so, there are two siginificant figures

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...................Answer

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3 years ago
What is the molecular geometry around each carbon atom in a saturated hydrocarbon?
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Answer:
            <span>Molecular geometry around each carbon atom in a saturated hydrocarbon is Tetrahedral.

Explanation:
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The highly reactive metals like sodium, potassium, magnesium, etc. Are extracted by the.
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Metals like sodium, potassium, magnesium, etc. are extracted by electrolysis of their chlorides in molten state.

These metals are not extracted by reduction of their oxides with carbon because:

Carbon has less affinity for oxygen than these metals

Carbon is a weaker reducing agent than these metals

These metals easily form oxides with oxygen, their oxides are very stable. Affinity to the oxygen is one the greatest of all elements.

Reducing agent is element or compound who loose electrons in chemical reaction. Sodium, potassium, calcium and magnesium are very strong reducing agents because they easily loose one or two valence electrons.

Electrolysis is a chemical methode that uses electric currents for chemical reactions.

More about reducing agent: brainly.com/question/7484765

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Do elements in the same group have same principle number?
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The s-, p-, and d-block elements of the periodic table are arranged into 18 numbered columns, or groups. The elements in each group have the same number of valence electrons. As a result, elements in the same group often display similar properties and reactivity.

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