Answer:
a is write
Explanation:
Why are all ionic compounds crystalline in structure?
Ionic compounds are generally hard, but brittle. ... The repulsive forces between like-charged ions cause the crystal to shatter. When an ionic crystal breaks, it tends to do so along smooth planes because of the regular arrangement of the ions.
Answer:
M = 0.177
Explanation:
First, we have to find the molar mass of potassium iodine (KI).
K = 39.098
I = 126.904
Now, add these values together to get the molar mass of KI
39.098 + 126.904 = 166.0028
Now, it's time to do a grams to moles conversion.
35.0 g KI *
=
= 0.212 mol KI
Now, we can find the molarity of this solution.
Molarity (M) = 
M =
= 0.177 M
The molarity (M) of this solution is 0.177.
Answer:
9. false
10. true
11. false
12. true
13. true
Explanation:
9. a Newton is the SI unit of force.
11. it says energy can't be created or destroyed