Answer:
Crystal structure; brittleness
Step-by-step explanation:
The image illustrates the crystal structure of an ionic solid.
This structure affects the brittleness of the solid.
If you strike a sharp blow to the crystal with a hammer, the crystal layers will slide past each other.
The ions with the same charge will repel each other, and the crystal will fly apart.
Answer:
B. They are highly reactive.
Explanation:
Answer:
c. both gases have the same number of molecules
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A. new ocean ridges and seafloor
Answer:
There are 0,011 moles of hydrogen gas.
Explanation:
We use the ideal gas formula, with the constant R = 0.082 l atm / K mol. The STP conditions are : 1 atm pressure and 273 K temperature. Solve for the formula, n (number of moles):
PV=nRT ---> n= (PV)/(RT)
n= (1 atm x 0,25 L)/ (0,082 l atm/ K mol x 273 K)
<em>n= 0,011 mol</em>