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3 years ago

What molecule carries the genetic code?

1 answer:

5 0

DNA is the molecule that carries the genetic code. These are found in the nucleus of cells. They copy themselves during replication when a cell divides and splits.

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Which of the following statement is not true about cooking techniques?

nika2105 [10]

Answer:

b) Every experienced cooks at home tend not to use recipes, instead based entirely upon their knowledge of cooking technique.

Explanation:

This is because even the most experienced cooks might make a mistake, so having a recipe where they can follow is better than just use their knowledge. If his or her knowledge has a mistake it might create a big consequence.

8 0

3 years ago

A chemistry student needs of acetic acid for an experiment. He has available of a w/w solution of acetic acid in acetone. Calcul

Volgvan

Answer:

49.4 g Solution

Explanation:

There is some info missing. I think this is the original question.

A chemistry student needs 20.0g of acetic acid for an experiment. He has 400.g available of a 40.5 % w/w solution of acetic acid in acetone.

Calculate the mass of solution the student should use. If there's not enough solution, press the "No solution" button. Round your answer to 3 significant digits.

We have 400 g of solution and there are 40.5 g of solute (acetic acid) per 100 grams of solution. We can use this info to find the mass of acetic acid in the solution.

$400gSolution \times \frac{40.5gSolute}{100gSolution} = 162 g Solute$

Since we only need 20.0 g of acetic acid, there is enough of it in the solution. The mass of solution that contains 20.0 g of solute is:

$20.0gSolute \times \frac{100gSolution}{40.5gSolute} = 49.4g Solution$

4 0

3 years ago

Which has a higher boiling point hcl or hi

Likurg_2 [28]

HI.

Hope this helps!

-Payshence

3 0

3 years ago

Read 2 more answers

1756 joules of heat are needed to change

vova2212 [387]

The specific heat of the nickel should be 54

8 0

3 years ago

A solid was found to be highly soluble in water. Treating separate portions of a solution of this solid with aqueous solutions o

chubhunter [2.5K]

Answer:

c. $Li_2CO_3$

Explanation:

Hello,

Due to the fact that an odorless gas was released, the chemical reaction between lithium carbonate and a random acid (for instance hydrochloric acid) turns out into:

$Li_2CO_3(s)+2HCl(aq)-->2LiCl(aq)+CO_2(g)+H_2O(l)$

It is known that carbonic acid is unstable and it quickly decomposes into water and carbon dioxide which is an odorless gas. In spite of the fact that the $PbSO_3$ releases $SO_2$ it isn't the solid since that gas is odorous.

Best regards.

3 0

3 years ago