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Murrr4er [49]
3 years ago
6

List 3 things that make the index contour unique

Chemistry
1 answer:
nekit [7.7K]3 years ago
3 0

Answer:

htoybuuo

t857 NJ n8

u. t i ukuo. jl

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pashok25 [27]
I’m pretty sure it’s A or C
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3 years ago
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how would you write equation to show how buffers H2CO3 and NaHCO3 behave when (a) HCl is added and (b) NaOH is added.
Vlad1618 [11]
<span>H2CO3 <---> H+ + HCO3-
NaHCO3 <---> Na+ + HCO3-

When acid is added in the buffer, the excess H+ of that acid reacts with HCO3- to form H2CO3, and due to this NaHCO3 dissociates into HCO3- to attain the equilibrium. and hence there is no net effect of H+ due to pH remain almost constant. when a base is added to the buffer, the OH- ion of base react eith H+ ion present in buffer, then to attain equilibrium of H+ ion, the H2CO3 dissociates to produce H+ ion, but now there is the excess of HCO3- due to which Na+ ion react with them to attain equilibrium of HCO3-. hence there is again no net change in H+ ion due to which pH remain constant.....</span>
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3 years ago
What do the symbols in the parentheses indicate
beks73 [17]

Answer:

(C) the physical state of each reactant and product

Explanation:

Hope this helps

8 0
3 years ago
Which of the following is true about a carbonated soft drink?
Makovka662 [10]
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4 0
3 years ago
NaCl has a Hfus = 30.2 kJ/mol. What is the mass of a sample of NaCl that needs 732.6 kJ of heat to melt completely? 24.3 g 82.7
alina1380 [7]
Hello.

The answer is  1417.7

Its 1417.7 grams becasue you have  to convert the moles to grams.


<span /><span><span>A mole is the amount of pure substance containing the same number of chemical units as there are atoms in exactly 12 grams of carbon-12 (i.e., 6.023 X 1023).

</span><span>a coherent, typically large body of matter with no definite shape.

Have a nice day</span></span>
4 0
3 years ago
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