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3 years ago

10

While elements and compounds can both be classified as pure substances because they have distinct properties and composition, __

________ cannot be decomposed further. A) compounds B) elements C) formulas D) molecules

2 answers:

Tresset [83]3 years ago

4 0

Elements as they are fundamental (one single hydrogen atom is still an element

makkiz [27]3 years ago

3 0

Elements or answer b

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If a bike travels 23m at constant speed 5289s what is the bikes speed?

frutty [35]

Answer:

0.004 m/s

Explanation:

Given data:

Distance traveled = 23 m

Time taken = 5289 s

Speed of bike = ?

Solution:

Formula:

speed = distance / time

b y putting values,

speed = 23 m/ 5289 s

speed = 0.004 m/s

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3 years ago

<img src="https://tex.z-dn.net/?f=%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%

Elan Coil [88]

Let's check Electronic configuration of N in ground state

$\\ \sf\longmapsto 1s^22s^22p^3$

In exited state

$\\ \sf\longmapsto 1s^22s^22px^12py^12pz^2$

3 p orbitals

In hydrogen case

$\\ \sf\longmapsto 1s^1$

1 s orbital

Hence Hybridization

$\\ \sf\longmapsto s-p-p-p$

$\\ \sf\longmapsto sp^3$

Structure is tetrahedral .

Spare way:-

Bond pairs==3=>Bonding electrons=6
Lone pair=1=>Anti bonding electrons=2

Hybridization

$\\ \sf\longmapsto \dfrac{1}{2}[\sigma+\sigma *]$

$\\ \sf\longmapsto \dfrac{1}{2}[6+2]$

$\\ \sf\longmapsto \dfrac{1}{2}[8]$

$\\ \sf\longmapsto 4$

sp3 Hybridization
Shape-Tetrahedral .

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3 years ago

What is the use of a blanket when putting out fires

klio [65]

Answer:

smuther the fire

Explanation:

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The different between molecules in a liquid and molecules in a gas

Zanzabum

Answer:

Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases. ... gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.

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3 years ago

Which fossil fuel is made when plants from swamps are covered, pressed, and heated for millions of years? A Coal B Petroleum C N

Naddik [55]

Answer:

A: COAL

Explanation:

Coal was created hundreds of millions years ago. When prehistoric plant life died and sank to the bottom of the swamp and was covered by layers of sediment.

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