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stich3 [128]
1 year ago
12

Metal objects, such as knifes or bullets, that come into contact with bones can leave trace evidence on them.

Chemistry
1 answer:
Crazy boy [7]1 year ago
7 0
The answer is true, metal objects that come in contact with bones can leave trace evidence on them
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A. Exothermic<br> B. Isothermic<br> C. Endothermic
Sati [7]

Answer:

C. Endothermic

Explanation:

Since the products potential energy is higher than the reactants potential energy, it has abosrbed energy, thus making the graph endothermic.

6 0
2 years ago
How many grams of CO2 are in 14 mol of the compound?
11Alexandr11 [23.1K]
the answer would be 616.133
4 0
3 years ago
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An electron is in a region outside the nucleus
harkovskaia [24]
Is that a question? Doesnt seem like it
3 0
2 years ago
The concentration of C29H60 in summer rainwater is 34 ppb. Find the molarity of this compound in nanomoles per liter (nM).
Naya [18.7K]

Answer: The concentration of C29H60 in nM per liter is 83,33 nM/liter

Explanation: Let's start from the ppb definition: ppb means parts per billion. In terms of concentracion measuring this means micrograms of solute per liter of solution.

The algebraic expression would be:

<em>ppb [=] micrograms of compound/liter of solution</em>

We can assume that the solvent is water. The solute is dissolved in water and both create the C29H60 solution.

For the exercise we have 34 ppb of C29H60, that means 34 micrograms of C29H60 in one liter of solution. So, since now, we have to convert the units from the initial data to the required answer.

The respective procedure is in a attached file.  

5 0
2 years ago
What does the symbol H stand for
muminat

Answer:

enthalpy

Explanation:

If it is used with a triangle in front, (delta H), that means the change in enthalpy. Delta H= (m)(s)(Delta T).  m=mass of products, s=heat of the products, Delta T = change in temperature.

Hope that helps

4 0
3 years ago
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