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xxTIMURxx [149]
3 years ago
11

Please help please help​

Chemistry
1 answer:
Lynna [10]3 years ago
6 0
Is really don’t know it like that sorry
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An aqueous HCL solution has a proton concentration equal to 6.00 mol/L. The HCL concentration in this solution is ————M.
Harman [31]

Answer:

HCl conc.= 6.0mol/L

Explanation:

From the dissociation of HCl= 1 mole H+ and 1mol Cl-, which is equivalent stoichiometrically in concentration to that of 1 mol HCl,

4 0
4 years ago
If a sample of cork has a mass of 2.88 g and a volume of 12.0 mL, what is the density of the cork? Show your work.
PilotLPTM [1.2K]

Answer:

The answer is

<h2>0.24 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

<h3>density =  \frac{mass}{volume}</h3>

From the question

mass of cork = 2.88 g

volume = 12 mL

The density is

density = \frac{2.88}{12}

We have the final answer as

0.24 g/mL

Hope this helps you

6 0
3 years ago
!!!PLEASE HELP ASAP!!!!consider this reaction:
gizmo_the_mogwai [7]
9L!!! You take the moles of N2 in the reaction and then divide by one mole of nitrogen. Then you multiply that by the number of hydrogen moles in the reaction which in this case is 3. This gives you an answer of 3. You then take the number of hydrogen moles and multiply it by the 3L giving you 9L of hydrogen.
6 0
3 years ago
what are two ways the study of fossils helps add to our understanding of the changes in Earth's environments?
dybincka [34]
They help us understand the concept of evolution and they help us understand what our earth was like before and after pangea or the great continental drift
5 0
4 years ago
Assume that the half-life of an M&amp;M is 15 seconds A. you start with M&amp; M's, how many would be left unchanged after 1 min
Nata [24]

Answer:

See below

Explanation:

1 minute is   4 halflives    ( because  4 x 15 sec = 1 minute)

(1/2)^4 = 1/16

you will have 1/16 as many M&M as you started

7 0
2 years ago
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