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Svetlanka [38]
2 years ago
5

Use the periodic table to calculate the percent composition of hydrogen in hexane.

Chemistry
1 answer:
valina [46]2 years ago
3 0

Answer:

A)16.3% (Hexane's formula is C6H14)

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1 . a chemical bond formed by the electrostatic attraction between ions covalent bond
liberstina [14]

Explanation:

When there occurs sharing of electrons between two chemically combining atoms then it forms a covalent bond. Generally, a covalent bond is formed between two non-metals.

An ionic bond is defined as the bond formed due to transfer of one or more number of electrons from one atom to another. An ionic bond is always formed between a metal and a non-metal.

Every atom of an element will have orbitals in which electrons are found. These orbitals are known as energy level.

A molecule is defined as the smallest particle present in a substance or atom.

A metallic bond is formed due to mobile valence electrons shared by positive nuclei in a metallic crystal.

Thus, we can conclude that given statements are correctly matched as follows.

1).  a chemical bond formed by the electrostatic attraction between ions - ionic bond

2).  a chemical bond formed by two electrons that are shared between two atoms - covalent bond

3). the orbitals of an atom where electrons are found - energy level

4).  the smallest particle of a covalently bonded substance - molecule

5).  a bond characteristic of metals in which mobile valence electrons are shared among positive nuclei in the metallic crystal - metallic bond

7 0
3 years ago
BRAINLIESTTT ASAP!! PLEASE HELP ME :))
goldenfox [79]

Answer:

Solar panels and solar cells.

Explanation:

The word "solar" means "relating to or denoting energy derived from the sun's rays".

Hope this helps! :)

5 0
3 years ago
Read 2 more answers
How many moles are contained in a 4.67-l sample of gas at 30°c and 199 kpa?
ohaa [14]
Pv=nRT
where,p=199, R(constant)=8.314, V=4.67 T=30C=293K
n=pv/RT=0.38 moles
4 0
3 years ago
Read 2 more answers
The pressure is changed from 500 kPa to 250 kPa. What would you expect the new volume to be if the initial volume is 200 mL?
Romashka [77]

Answer:

<h3>The answer is 400 mL</h3>

Explanation:

The new volume can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we are finding the new volume

V_2 =  \frac{P_1V_1}{P_2}  \\

So we have

V_2 =  \frac{500000 \times 200}{250000}  =  \frac{100000000}{250000}  =  \frac{10000}{25}  \\

We have the final answer as

<h3>400 mL</h3>

Hope this helps you

4 0
3 years ago
Where are electrons found in an atom
dedylja [7]

Answer:

The electrons are found on the outer shell of the atom.

Explanation:

6 0
3 years ago
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