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aleksley [76]
3 years ago
13

What is the most significant breakthrough in forensic science since the development of fingerprinting?

Chemistry
1 answer:
andreyandreev [35.5K]3 years ago
5 0
DNA testing which I think is the largest breakthrough.
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How can water be used for energy ?
Fantom [35]

First one is B and the second one is C

6 0
3 years ago
Read 2 more answers
Answer this ......,..,.,.,.,.,.,.,..,.,.,.,.,.z.z.,.,.,.,..,.,.,.,.,.,.,.,.,..,​
ioda
A) CuBr2

b) Al(NO3)3

c) Ca3(PO4)2

d) Fe2S3

e) HgCl2

f) Mg(C2H3O2)2

7 0
2 years ago
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 6.50kg of water at 24.2°C. Dur
sukhopar [10]

Answer:

27.4°C

Explanation:

Using the equation:

Q = m*C*T

<em>Where Q is heat added,</em>

<em>m the mass of water</em>

<em>C specific heat of water (4.18J/g°C)</em>

<em>And T the increase in temperature</em>

We can solve for the increase in temperature and thus, the final temperature of water:

Q = 88200J; m = 6500g:

88200J = 6500g*4.18J/g°C*T

3.2°C = T = increase in temperature

Final temperature is:

24.2°C + 3.2°C =

<h3>27.4°C</h3>
5 0
2 years ago
What is the relationship between living things that depend on
o-na [289]

Answer:

Id say A. Competition, hope this helps

Explanation:

6 0
3 years ago
If liquid carbon disulfide reacts with 450 mL of oxygen to produce the gases carbon dioxide and sulfur dioxide, what volume of e
ivolga24 [154]

If excess carbon disulfide reacts with 450 mL of oxygen, 150 mL of carbon dioxide and 300 mL of sulfur dioxide gases would be produced respectively.

<h3>Stoichiometric calculation</h3>

The reaction between liquid carbon disulfide and oxygen is represented by the equations below:

CS_2 + 3O_2 -- > CO_2 + 2SO_2

The mole ratio of oxygen to carbon dioxide and sulfur dioxide produced is 3:1:2.

Thus, for 450 mL oxygen, 1/3 x 450 = 150 mL of carbon dioxide will be required.

Also for 450 mL of oxygen, 2/3 x 450 = 300 mL of sulfur dioxide will be required.

More on stoichiometric calculations can be found here: brainly.com/question/27287858

#SPJ1

5 0
2 years ago
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