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3 years ago

Where do mutations occur?

Chemistry

2 answers:

Andreas93 [3]3 years ago

5 0

Answer:

In your DNA

Explanation:

Usully when a photon of certain energy strikes your DNA it cuases it to fractior. when a speciel protein repairs it it sometimes puts the wrong strand back on. this slow procces is sometimes helpfull other times not.

shepuryov [24]3 years ago

3 0

Answer:

in the cell during mitosis or during meiosis

Explanation:

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The Mass of the paper before being bumed is 50% how much mass should there be after

neonofarm [45]

Explanation:

IF YOU BURNED THE PAPER THERE WILL BE ONLY ASHES

3 0

2 years ago

Study the trend of the graph from part C. What would the reaction time be if 3 tablespoons (45 milliliters) of water had been us

tatyana61 [14]

Based on the trend from the graph, the reaction time would have been 32.5 seconds.

<h3>What is the trend in the graph?</h3>

A trend is a general pattern which an observation follows based on previous observations and occurrences.

The reaction time is the time it take for a chemical reaction to occur.

Reaction time is also a measure of reaction rate. The shorter the reaction time, the faster the reaction rate and vice versa.

Based on the trend from the graph, the reaction time would have been 32.5 seconds.

In conclusion, reaction time is a measure of reaction rate.

Learn more about reaction time at: brainly.com/question/24795637

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4 0

2 years ago

For a reaction A + B → products, the following data were collected. Experiment Number Initial Concentration of A (M) Initial Con

Afina-wow [57]

Answer:

Rate constant k = 1.57*10⁻⁵ s⁻¹

Explanation:

Given reaction:

$A\rightarrow B$

Expt [A] M [B] M Rate [M/s]

1 3.40 4.16 1.82*10^-4

2 4.59 4.16 3.32*10^-4

3. 3.40 5.46 1.82*10^-4

$Rate = k[A]^{x}[B]^{y}$

where k = rate constant

x and y are the orders wrt to A and B

To find x:

Divide rate of expt 2 by expt 1

$\frac{3.32*10^{-4} }{1.82*10^{-4} } =\frac{[4.59]^{x} [4.16]^{y} }{[3.40]^{x} [4.16]^{y} }\\\\x =2$

To find y:

Divide rate of expt 3 by expt 1

$\frac{1.82*10^{-4} }{1.82*10^{-4} } =\frac{[3.40]^{x} [5.46]^{y} }{[3.40]^{x} [4.16]^{y} }\\\\y =0$

Therefore: x = 2, y = 0

$Rate = k[A]^{2}[B]^{0}$

To find k

Use rate for expt 1:

$k = \frac{Rate1}{[A]^{2} } =\frac{1.82*10^{-4}M/s }{[3.40]^{2} } =1.57*10^{-5} s-1$

6 0

3 years ago

What is 2n^2 rule ( of science)

lozanna [386]

2n² rule:

This rule is used to determine number of electrons in particular shell.

n=1 means K shell

n=2 means L shell

n=3 means M shell

n=4means N shell

The first K shell can hold upto 2 electrons, L shell can hold up to 8, third M shell can hold up to 18and the fourth N shell can hold upto 32 electrons. This rule of arrangement of electrons according to the shell is known 2n2 rule where n means number of shell.

For example: There is one proton in the nucleus of hydrogen atom, which moves in K shell path. It has no neutron.

3 0

3 years ago

7. Which is an example of a good insulator? <br>iron<br>copper <br>silver <br>rubber

Dmitrij [34]

Answer:

Rubber is an insulator.

Remaining three are metals and hence conductors.

4 0

3 years ago