1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
m_a_m_a [10]
3 years ago
13

What occurs during replication?

Chemistry
2 answers:
Elza [17]3 years ago
8 0

Answer:

A copy of DNA is made from existing DNA.

Explanation:

Just did the quiz

s2008m [1.1K]3 years ago
6 0

Answer:

A

Explanation:

Hopefully this helps

You might be interested in
Given the balanced equation representing a reaction:
Vilka [71]
(2) a base because they accept H+ ions. NH3 is the conjugate base of NH4+.
5 0
4 years ago
How do you perform calculations relating to isotopes. describe please
Zigmanuir [339]

Explanation:

I'm not sure if this is what you are looking for but i will attempt to answer.

Isotopes are variations of the same atom. They have the same number of protons but have a different number of neutrons. As a result of this, the atomic number remains the same but the mass number changes.

A calculation you could perform in relation to isotopes would be calculating the relative atomic mass. The relative atomic mass is the weighted average of masses of isotopes.

Relative atomic mass (RAM)= the addition of

\frac{relative \: isotopic \: mass \times percentage \: abundance}{100 }

For example, the element Indium has a relative isotopic mass of 112.90406, 4.29% of the time. It has a relative isotopic mass of 114.903878, 95.71% of the time.

From this

RAM=

\frac{112.904061 \times 4.29}{100}  +  \frac{114.903878 \times 95.71}{100}  = 114.8(4 \: sig \: figs)

8 0
3 years ago
Elemental iodine (I 2) is a solid at room temperature. What is the major attractive force that exists among different I 2 molecu
Ulleksa [173]

Explanation:

As I_{2} is a covalent compound because it is made up by the combination of two non-metal atoms. Atomic number of an iodine atom is 53 and it contains 7 valence electrons as it belongs to group 17 of the periodic table.

Therefore, sharing of electrons will take place when two iodine atoms chemically combine with each other leading to the formation of a covalent bonding.

Hence, weak forces like london dispersion forces will be present between a molecule of I_{2}.

The weak intermolecular forces which can arise either between nucleus and electrons or between electron-electron are known as dispersion forces. These forces are also known as London dispersion forces and these are temporary in nature.

thus, we can conclude that london dispersion force is the major attractive force that exists among different I_{2} molecules in the solid.

7 0
4 years ago
The amount of protein in a sample was measured by the sample's absorbance of light at a given wavelength. Using standards, a bes
FinnZ [79.3K]

Answer:

Protein Concentration is 2.82mg/L

Explanation:

According to Beer-Lambert's Law, Absorbance is directly proportional to the concentration.

However, the concentration of a solution can be determined from a calibration curve, in which Absorbance is plotted on the y-axis and the Concentration on the x-axis.

Plotting the best line, the equation of line is used

y = mx + c

where y is absorbance = 0.150

           m is slope = 0.0163

            x is concentration

             c is intercept = 0.104

inserting the values from the question

y = mx + c

0.150 = 0.0163x + 0.104

0.0163x = 0.150 - 0.104

0.0163x = 0.046

Divide both sides by 0.0163

0.0163x/0.0163 = 0.046/0.0163

x = 2.82

Concentration of protein = 2.82 mg/L

5 0
4 years ago
Why are hurricanes so frequent in areas close to the equator?
Tpy6a [65]
Because its where the warm water is, the warmer the water, the stronger the hurricane, and plus its tides that brings the warm water

Hope this helps! :)
8 0
4 years ago
Other questions:
  • What type(s) of intermolecular forces are expected between nocl molecules?
    7·1 answer
  • Identify whather the following are elements, compounds and mixture.
    10·1 answer
  • If aqueous solutions of lead(II) nitrate and sodium sulfate, which insoluble precipitate is formed?
    10·1 answer
  • How to find total pressure of gases
    13·1 answer
  • HELP ASAP!!! Which part of a comet exists even when it is very far away from the Sun?
    5·2 answers
  • How many grams of hydroxide pellets, NaOh are required to prepare 50.0ml of a 0.150 M solution ?
    13·2 answers
  • In your own words, explain how you would make an electromagnet.
    6·1 answer
  • An isotope of an element has the following symbol: 131 I How many electrons does it
    11·1 answer
  • How does the Electoral College help to ensure that citizens in all states have a voice in the election of the
    14·1 answer
  • Cambiar dos meses a segundos
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!