<span>Oceanic crust is denser than continental crust. This is partly why the continents are at a higher elevation than the ocean floor.</span>
Answer:
C.) Al(NO₃)₃ (aq) ---> Al³⁺ (aq) + 3 NO₃ (aq)
Explanation:
A.) is incorrect because aluminum nitrate is able to dissociate. I other words, it is able to separate into the two ions that created it.
B.) is incorrect because, according to the reactant, there should be 3 nitrates present after dissociation. The dissociation equation is not balanced without this coefficient.
C.) is correct. The two ions that make up aluminum nitrate are Al³⁺ and NO₃⁻. Notice how the charges are not balanced. To make up for this difference, there must be 3 nitrates for every aluminum ion to keep the overall charge of the reaction (and aluminum nitrate) neutral.
D.) is incorrect because there should not be a coefficient of 3 in front of Al³⁺ and instead in front of NO₃.
Answer:Mathematically: D = m/v. If you know what liquid you have, you can look up its density in a table. Once you know that, all you have to do to find the mass of the liquid is to measure its volume. Once you know density and volume, calculate mass using this relationship: mass = density • volume.
Explanation:
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