Difference between a row (“period”) & a column (“group”) on the periodic table and examples.

2 answers:

5 0

The rows are the one line of elements that goes from left to right horizontally. A column is a line of elements that goes vertically.

dalvyx [7]3 years ago

4 0

Groups are number of valance electrons and periods are number of electron shells. the gtoups 13-18 have 3-8 valance electrons and groups 1 and 2 have 1 and 2 valance electrons

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If I initially have a gas at a pressure of 12 kPa, a volume of 23 liters, and a temperature of 200 K, and then I raise the press

sertanlavr [38]

Answer:

The new volume of gas would be 30 L.

Explanation:

This is an example of a Combined Gas Laws problem.

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3 years ago

A sample of potassium chlorate (15.0 g) is dissolved in 201 g of water at 70 °c with precautions taken to avoid evaporation of a

zlopas [31]

Answer is: unsaturated.
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gregori [183]

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3 years ago

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wel

$KI (s) ----\ \textgreater \ K(s) + I_2 (g)$

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3 years ago

Select the correct answer.

bazaltina [42]

C. Magma from venus mantle erupted as lava.

Explanation:

A volcano is a land form which results from the eruption of molten rocks (lava) on the surface. Volcanic rocks are a special type of igneous rock that forms when molten rock cools and solidifies on the surface.

For a planet like Venus which is presently not active and little to no movement occurs within the plates, the volcanisim must have occurred when the planet was relatively young and it must have been millions of years ago.

It is widely believed that Venus was geologically active in times past. Mantle generated lava must have solidified on the surface in times past to have formed the volcano.

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Impact of space objects on Venus would lead to the formation of a crater which is a depression on the surface. The rock would be mostly metamorphic.

If water was ever present in Venus, they would have produced sedimentary rocks instead. The erosive power of water is not high enough to cut through the crust. Also, water would not aid the formation of volcanoes.

Heat is not enough to from volcanoes. Other factors are also in play.

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2 years ago