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Scorpion4ik [409]
3 years ago
7

Why is a solution not a pure substance?

Chemistry
2 answers:
kobusy [5.1K]3 years ago
6 0

Answer:

C

Explanation:

The answer is C. A solution would be two substances mixed together, while a pure substance is the base substance, with nothing added.

dalvyx [7]3 years ago
4 0

Answer:

it i a mixture between a solute and solvent

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A scientist discovers a new type of polymer. What must be true about this polymer?
mixas84 [53]

Answer: Option (D) is the correct answer.

Explanation:

A polymer is a large molecule which contains repeating units.

A polymer forms long chain of atoms which are not necessarily arranged in a ring structure. There are not only double bonds between all the carbon atoms, as there can be single bonds or triple bonds between the atoms of a polymer.

A polymer does not contain many different type of molecules as there are many repeating units and not many molecules in a polymer.

A polymer is made of large molecules with repeating units.

Thus, we can conclude that option (D) is the correct answer.

5 0
4 years ago
A gas at 200 K occupies a volume of 350 ml. What temperature is needed to increase the volume
Rudik [331]

Answer: Temperature in constant pressure is 286 K

Explanation: If pressure remains constant, then V/T = constant.

V1 = 350 ml and T1 = 200 K and V2 = 500 ml.  V1/T1 = V2/T2

and T2 = T1· V2 / V1 = 200 K · 500 ml / 300 ml = 285,7 K

5 0
3 years ago
What do LEGOs and DNA have in common?
dexar [7]

Answer:

They are both building blocks

Explanation:

DNA builds up life while legos build things

4 0
3 years ago
If the sequence on the right hand side of the DNA molecule was TAGGCTA, the complementary side would have the sequence of what?
ella [17]

Answer:

ATCCGAT

Explanation:

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4 0
3 years ago
Which group has 4 valence electrons
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Group 14: Carbon family has valence electrons. 
4 0
4 years ago
Read 2 more answers
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