The median of the set of numbers 2, 4, 6, 8, and 10 is 6 because the median is the middle number in a sorted, ascending or descending, sequence of numbers.
In the field of statistics, the median is the middle value in a set of data that has been arranged in ascending order. If the total number of data values is odd, the median is the middle value. When the count of data values is even, the median is computed as the average of the two middle values. The given data set is 2, 4, 6, 8, 10. Since this is an odd set of numbers, we set the number in the middle as the median. Thus, the median value here is 6.
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By breaking a carbon double bond and adding chlorine.
By removing hydrogen because of chlorine’s attraction to hydrogen’s nucleus.
Chlorine and ethene do not react spontaneously.
Answer: option B m
Explanation:
It is an example for Electrophilic Addition of Halogen. And addition of Cl2 to Alkene is always Trans Addition. That means both cl atoms should add opposite side of double bond and results vicinal 1,2-dichloroethane as a product.
CH2=CH2 + Cl2-------> ClCH2CH2Cl
increases.
(b) The water molecules decompose into hydrogen and oxygen molecules.
(c) The water molecules return to the surface as fast as they leave.
(d) The water vapour molecules have greater kinetic energy than the liquid water
molecules.
´ 1 _____/60 _____ = 15 _____
Answer:
916.7 m/s
Explanation:
Given:
The value of speed = 55 km/hr
To determine:
The corresponding value in meters/second i.e m/s
Formula:
Step 1:
Convert km to m
1 km = 1000 m
Therefore, 55 km = 55 km * 1000 m/1 km = 55,000 m
The speed now is = 55,000 m/hr
Step 2:
Convert hr to sec
60 sec = 1 hr
Speed = 55,000 m/hr * 1 hr/60 sec = 916.7 m/s
Answer:
2.2 °C/m
Explanation:
It seems the question is incomplete. However, this problem has been found in a web search, with values as follow:
" A certain substance X melts at a temperature of -9.9 °C. But if a 350 g sample of X is prepared with 31.8 g of urea (CH₄N₂O) dissolved in it, the sample is found to have a melting point of -13.2°C instead. Calculate the molal freezing point depression constant of X. Round your answer to 2 significant digits. "
So we use the formula for freezing point depression:
In this case, ΔTf = 13.2 - 9.9 = 3.3°C
m is the molality (moles solute/kg solvent)
Molality = 0.53 / 0.35 = 1.51 m
So now we have all the required data to solve for Kf:
The correct answer is option 2. One way of expressing concentration is by expressing it by parts per million or ppm. It is calculated by dividing the grams of solute and the grams of the solution, and the result is multiplied by 1 000 000. Parts per million is equal to 1 milligram of solute per kilogram of solution.