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: (a) The products are and AgCl. The balanced equation is .
(b) The type of reaction is double displacement reaction.
Explanation:
(a) The complete reaction equation will be as follows.
Number of atoms on reactant side are as follows.
- Be = 1
- Cl = 2
- Ag = 2
- = 2
Number of atoms present on product side are as follows.
- Be = 1
- Cl = 2
- Ag = 2
- = 2
Here, number of atoms on both reactant and product side are the same. Hence, it is a balanced chemical equation.
(b) A reaction in which two reactant species tend to change their ions with each other and form new compounds. This type of reaction is called double displacement reaction.
As the given reaction is as follows.
This shows that ions are being exchanges by the reactants and
. The ions are , , and .
Therefore, this reaction is a double displacement reaction.
They're all intertwined! For instance: Matter is composed of Atoms - which are kept together and create molecules. Elements are made up of only one kind of atoms. Atoms that have different elements and are bonded together form compounds. If atoms are ever aligned in a perfect 3d arrangement, they form an awesome crystal.
So in short: They all are one big happy family, so to speak that are either the outcome or help decide the outcome of the product.