Answer:
a. is an excel document. i uploaded as an attachment
b. concentration = 0.327
Explanation:
in the graph i uploaded for answer a, the x variable is conductivity, while the y variable is % salinity.
the calculated regression line was calculated using excel =
y = 0.057655X - 0.00891
for answer part b,
we take x = 5.82
when we put this into the y formular
y = 0.057655(5.82) - 0.00891
y = 0.3355521 - 0.00891
y = 0.3266421
this is ≈ 0.327
in conclusion, using the standard curve, the concentration of unknown salt is 0.327. the % salinity = 0.327
Answer:
A. When water moves into a crack and freezes, it expands and forces the crack wider.
Explanation:
A crack in a rock can fill with water which then freezes as the temperature drops. As the ice expands, it pushes the crack apart, making the crack larger. When the temperature rises again, the ice melts, and the water fills the newer parts of the crack. Once the water freezes again when the temperature drops, the expansion of the ice causes further expansion to the crack.
Not sure what you mean could you be a little more detailed
B gets multiplied 3 times as much aswell. (brainly pls) :D