Answer:
Hey there!
The volume of the box would be 45(7)(15), or 4725 cm^3.
The density of any object is the mass divided by volume. Thus, the density of the water would be 14/2, or 7 g/cm^3.
Let me know if this helps :)
Molality of C2H5OH is 1.1.27m.
What is Molality?
Molality is no.of moles present in One Kg solution .
Molality is represented by m
m= no.of moles/ weigt of solution in kg
Given is Molarity= 51.30M
molar mass of C2H5OH is 46g / mol , Density =0.9349g/ ml
Density=m/V
V = 107 ml
Molarity= no of moles/ Volume
51.5×46×107= x × 1000
weight of C2H5OH = 27.7g
molality = 27.7/1000××46
m= 1.27m
to learn more about Molality click brainly.com/question/20380670
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There are two equations given in the question. The type of reaction shown can be easily judged, if one takes a closer look at the equations.
1. <span>Ba(ClO3)2(s) ----> BaCl2(s) + 3O2(g) ------- Redox
2. </span><span>CaO(s) +CO2(g) ----> CaCO3(s) -------- None.
I hope that this is the answer that you were looking for and the answer has actually come to your desired help.</span>
Mass number of calcium isotopes
mass numberi the number of proton + neutron
number of proton for calcium is 20 regardless of isotopes
hence the only difference between calcium isotopes are rhe number of neutron
Here Is A Sentence You Could Possibly Use:
"Hydrogen and Nitrogen are two examples of non-metals."
(You can replace the two given elements with whatever two non-metallic elements you like.)
Hope This Helps!
BTW, You May Want A Second Opinion Just In Case! :)
