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lys-0071 [83]
2 years ago
10

An element is defined as a substance that is composed of only one type of atom. True or false?.

Chemistry
2 answers:
qwelly [4]2 years ago
8 0

Answer:

True.

Explanation:

An element is a pure substance and is made of only one type of atom

joja [24]2 years ago
6 0

Answer: True.

Explanation:

An element is exactly that definition, composed of only one type of atom, which is why chemical elements are all different from each other.

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Clouds are formed by water then it evaporates into air
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4 years ago
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What does the monomer unit of Polyester look like? And what’s its chemical formula?
AlladinOne [14]

Answer:

             The monomers of polyesters are,

                                  (i) A Dicarboxylic Acid

                                  (ii) A Dialcohol

Explanation:

                     As depicted from name polyester is a macromolecule which contains numerous ester functional groups. Ester is formed by the condensation of Carboxylic acid and alcohol as shown,

                            R-COOH  +  R'OH  →  RCOOR'  +  H₂O

Therefore, in order to utilize this reaction for the formation of long chain of polyesters then one can use a dicarboxylic compounds and dialcohol compounds. This will allow to propagate the chain length depending upon the requirement. Hence, the general reaction for the formation of polyester is shown below. The circle and rectangle specifies different moieties which imparts different characters to the polyester.

6 0
4 years ago
Analysis of an unknown compound reveals that the compound is 27.29% carbon and 72.71% oxygen. The molar mass of the compound is
Nana76 [90]

Answer:

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Explanation:

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6 0
3 years ago
1 mole of hcl(g) has a greater entropy than 1 mole of hbr(g). true or false
yan [13]
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HBr has greater molecular size (molar mass) than HCl
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7 0
4 years ago
Homeostasis is the balance between your internal and external environments. We
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