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garik1379 [7]
3 years ago
15

What is DNA? What information does it carry? Where is DNA located?

Chemistry
1 answer:
zaharov [31]3 years ago
3 0

Answer:

Dna is a molecule. It carries hereditary information. It is located in the chromosomes.

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The Bohr model of an atom shows a nucleus with electrons circling around it. What does the Bohr model show that makes it a usefu
mart [117]

Answer:

electronic in useful model

4 0
3 years ago
Which of the following represent chemical properties? Check all that apply. Question 16 options: solubility flammability conduct
mars1129 [50]
Flammability, oxidation, odor, combustibility
8 0
2 years ago
Read 2 more answers
Given that the density of water is 1.00 g/mL, the density of toluene is 0.867 g/mL, and the density of chloroform is 1.48 g/mL,
12345 [234]
Answer:
Top-Toluene
Middle-Water
Bottom-Chloroform

Explication:
Chloroform is on the bottom layer because it is the densest liquid.
Toluene is on the top because it is the least dense.
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4 0
3 years ago
Compare and contrast alpha beta and gamma radiation
Evgen [1.6K]
There are usually 3 topics used to compare types of radiation: 

Ionising ability
Penetrative power 
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Ionising ability
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Penetrative power 
Alpha particles are weakly penetrating, stopped by paper, while beta particles have stronger penetrating ability, stopped by skin and gamma radiation is very strongly penetrating, stopped only by thick layers of lead.

Range in air
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Beta - range of up to one meter 
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Hope this helps:)


8 0
3 years ago
A 1.00 L of a solution is prepared by dissolving 125.6 g of NaF in it. What would be the molarity of this solution?
DedPeter [7]

Answer:

2.99 M

Explanation:

In order to solve this problem we need to keep in mind the definition of molarity:

  • Molarity = moles of solute / liters of solution

In order to calculate the moles of solute, we <u>convert 125.6 g of NaF into moles</u> using its <em>molar mass</em>:

  • 125.6 g NaF ÷ 42 g/mol = 2.99 mol NaF

As the volume is already given, we can proceed to <em>calculate the molarity</em>:

  • Molarity = 2.99 mol / 1.00 L = 2.99 M
4 0
2 years ago
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