Answer: I just took the test, the answer is A.
Explanation:
Answer:
8.2×10¯⁵ L
Explanation:
82 μL.
We can convert 82 μL to L by doing the following:
To convert from microlitre (μL) to litre(L), we need to know how many microlitre (μL) that makes up a litre (L)
Recall:
1 μL = 1×10¯⁶ L
Therefore,
82 μL = 82 μL × 1×10¯⁶ L/1 μL
82 μL = 8.2×10¯⁵ L
Therefore, 82 μL is equivalent to 8.2×10¯⁵ L
Answer: Option (b) is the correct answer.
Explanation:
According to the law of conservation of mass, mass of a substance can neither be created nor it can be destroyed but it can simply be transformed from one form to another.
Therefore, when a metal is burned in a closed container, the mass of the container and its contents do not change because they follows law of conservation of mass.
Thus, we can conclude that when a metal is burned in a closed container, the mass of the container and its contents do not change then it is a law.
Answer:
C
Explanation:
A solution is made when solute is dissolved in a solvent. Take a simple scenario for example, a salt solution typically is comprises of a an amount of salt mixed with a certain volume of water. The mixture of both is what makes a salt solution.
In this case, we need to make a solution if sweetened coffee. Prior to now, we know we have a particular coffee which is unsweetened that is has no sugar in it. Now, we are tasked with the responsibility of making a sweetened coffee. Our coffee is without sugar thus will serve as the solvent because it is the carrier medium. The sugar which obviously would dissolve in the solvent to form a solution would be our solute.
Now dissolving it in the unsweetened coffee thus will give us a sweetened coffee solution.
<h2>ASNWER:</h2><h2>______________________________________</h2>
The Element Bromine belongs to the 7th group "THE HALOGENS" in the periodic table. The general oxidation number of the Halogens is -1 thus Charge on bromide ion is expected to be -1.
<h2>______________________________________</h2>