Answer:
What is the difference between the crust and lithosphere? The crust (whether continental or oceanic) is the thin layer of distinctive chemical composition overlying the ultramafic upper mantle. ... The lithosphere is the rigid outer layer of the Earth required by plate tectonic theory.
Explanation:
Answer:
- <em><u>Correlation</u></em>
Explanation:
In statistics, when two (or more) variables are associated in a way that when one changes the other (or others) also changes it is said that they are correlated.
When one event is the result of the occurrence of other event then the relationship called causation: one event causes the other event, which in turn is the effect. That is cause - effect relation.
Many times it is difficult to establish the causation of an effect an it requires some kind of tests or formal reasoning.
In the case of the increasing levels of carbon dioxide in the atmosphere and the increaseing use of fossil fuel, we may be tempted to conclude that the use of fossil fuel is the cause of the increasing levels of carbon dioxide in the atmosphere, but the true is that you need some other information to certainly asses the causation relationship: more data or more insight.
How do you know that there is no other situation that is cause of both facts?
In general, when you only know the behavior of two variables, without more information, you cannot determine whether there is causation or not. You would need to run an experiment (a controlled study) or to posses a deeper insight on the matter.
Answer:
The excess reactant is the NaCl.
Explanation:
NaCl(aq) + AgNO3 (aq) → NaNO₃(aq) + AgCl (s) ↓
This is a precipitation reaction.
We need to convert the mass of each reactant to moles:
4 g / 58.45 g/mol = 0.068 moles of NaCl
10 g / 169.87 g/mol = 0.059 moles of nitrate.
As stoichiometry is 1 by 1, 1 mol of chloride will react with 1 mol of nitrate.
If I have 0.059 moles of nitrate, I will need the same amount of chloride and I have 0.068 moles. I still have chloride, therefore the excess reactant is the NaCl.
0.068 mol - 0.059 mol = 0.009 moles are the moles of NaCl that remains after the reaction is complete
Answer:
The solid layer of fat on top protects the broth from freezer burn. When I take the broth out of the freezer I use a butter knife to pop the fat cap off before defrosting. I do save chicken fat from soup and use it instead of butter or olive oil when I cook onions.
Explanation:
hit the heart