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Len [333]
3 years ago
13

Explain how alkali metals are different from noble gases.

Chemistry
1 answer:
Sveta_85 [38]3 years ago
6 0

Answer:

The answer to your question is given below

Explanation:

1. Alkali metals are simply metals of the group 1 elements, because they 1 valence electron. Noble gas on the other hand are simply the group zero element, because they have zero valence electron.

2. Alkali metals react with water to form alkalis hence they are called alkali metals. Noble gas does not take part in any reaction hence they are referred to as noble gas.

3. Alkali metals have incomplete octet configuration while noble gas has complete octet configuration.

4. Alkali metals are all solid at room temperature, while noble gas are all gases at room temperature

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Each of the following is a noncovalent interaction EXCEPT ________. a) Hydrogen bond b) Carbon-hydrogen bond c) Van der Waals d)
brilliants [131]

Answer:

CARBON-HYDROGEN BOND

Explanation:

The non-covalent interactions in the options are the hydrogen bond, the Van der Waal's bond, the dipole-dipole interaction. The odd one out of the options is the carbon - hydrogen bond.

The carbon-hydrogen bond is a covalent bond involving carbon and hydrogen atoms in which carbon shares its outer valence electrons with up to four hydrogen atoms either forming a complete shell with single bonds or complete shells with double or triple bonds. The type of bonding is found in hydrocarbons and other organic compounds. For example the alkanes, alkenes, alkynes and aromatic hydrocarbons.

The non- covalent bonds are the bonds that bind macro-molecules and do not involve the sharing of pairs of electrons. They are much more weaker than covalent bonds and are very important in the formation of proteins and nucleic acids. This type of bonding includes the electrostatic interactions, hydrogen bonds, hydrophobic bonds, Van der Waal's interactions. The different types of the non-covalent bonds differ in geometry, strength and specificity.

So therefore, carbon-hydrogen bond is the odd one of the non-covalent interactions listed in the options.

5 0
3 years ago
Can you give an example of a way that you use moles in your everyday life? If you can’t think of one, can you create an instance
antiseptic1488 [7]

Answer:

In chemistry, the mole is a unit used to talk about atoms. It is similar to other units we use everyday. For example, you might walk into the local doughnut shop and order a dozen doughnuts. In doing so, you know that you will get 12 of these snacks and the clerk knows to give you 12.

8 0
2 years ago
t takes 7.21 ⋅ 10 − 19 J of energy to remove an electron from an iron atom. What is the maximum wavelength of light that can do
loris [4]

Answer:

276 nm

Explanation:

The equation relating the energy (E) and the wavelength (λ) of a wave is  

E = (hc)/λ                         Multiply both sides by λ

Eλ = hc                            Divide both sides by E

λ = (hc)/E

h = 6.626 × 10⁻³⁴ J·s

c = 2.998 × 10⁸ m·s⁻¹

E = 7.21 × 10⁻¹⁹ J             Calculate the wavelength

λ = (6.626 × 10⁻³⁴ × 2.998 × 10⁸)/7.21 × 10⁻¹⁹

λ = 2.76 × 10⁻⁷ m = 276 × 10⁻⁹ m = 276 nm

6 0
3 years ago
14. A neutron has a charge of<br> (1) +1<br> (2) +2<br> (3) O<br> (4) -1
olasank [31]
The answer is (3) O.
3 0
3 years ago
Read 2 more answers
How do I Calculate the formula mass for compound CCl4?
IrinaVladis [17]

Explanation:

A mole of carbon has a mass of 12.011⋅g . A mole of chlorine gas has a mass of 71.0⋅g . You do the math. The molar mass of carbon tetrachloride is 153.8 g/mol.

7 0
3 years ago
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