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mamaluj [8]
3 years ago
13

What have teeth but Cannot eat?

Chemistry
2 answers:
elena-14-01-66 [18.8K]3 years ago
6 0
A comb. hope this helped !
professor190 [17]3 years ago
5 0

Answer:

A comb

Explanation:

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The shadow zone exists because:
Sliva [168]

Answer: I would say that the answer is C.)  P waves reflect as they travel through Earth.

Explanation:

6 0
3 years ago
If the block were to be cut in half, what would be the<br> density of the smaller block?
anyanavicka [17]

Answer:

Density stays the same

Explanation:

The density remains the same because cutting the object in half will divide the mass & volume by the same amount. Also, the density of a substance remains the same no matter what size it is.

6 0
3 years ago
What is the atomic number of Zinc​
Viefleur [7K]

Answer:

30

Explanation:

The atomic number of Zinc​ is 30.

Hope this helped!

Have a supercalifragilisticexpialidocious day!

6 0
3 years ago
Read 2 more answers
A one or two letter symbol indicating a particular element two words no spaces
Andreyy89

Answer:

The Symbols of elements is given by :

IUPAC : International Union Of Pure and Applied Chemistry .

Its is the Universally recognuised organisation which works on Chemical nomenclature and terminology.

Explanation:

According to IUPAC the elements are named according to mythological concept of country ,mineral , place , property and scientist.

Ex:Copper name comes from the old english word Cyprus.

Rules of Naming elements :

1. The first Alphabet of the element is always Capital.Example:-  

Sodium : Na  not ''na'

2. The second alphabet is always small .Example

Sodium : Na  not ''nA' or NA

3.For most of the elements ,The symbol of the element comes from the <u>first two words.</u>

Example : Hydrogen : H

Helium : He

Copper : Cu

Rules for naming elements having mass> 100

1. The names are derived directly from the atomic number .

Ex : 0 = nil    1= un    2=bi   3=tri

2. The name always ends with ''ium''

For example :

102 = Unnilbium

5 0
4 years ago
Biological membranes are present in all cells, and they make up the endomembrane system of eukaryotic cells. Among other functio
docker41 [41]

Answer:

The correct option for question 1 would be:

a bilayer containing lipids with hydrophilic head groups pointing inward and hydrophobic tail groups facing the solvent (extracellular fluid and cytosol).

The correct option for question number two would be: proteins.

Explanation:

The membranes present phospholipids that act as selective barriers between the intracellular and extracellular space, allowing an internal balance in relation to the external one.

Its conformation is mostly phospholipids, fatty acids, proteins (from transmembrane to intermembrane or external)

5 0
3 years ago
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