Answer:
D. B, C, A
Explanation:
A. For object A, given the following data;
Mass = 2kg
Net force = 1N
To find the acceleration;
Acceleration = net force/mass
Acceleration = 1/2
<em>Acceleration = 0.5m/s²</em>
B. For object B, given the following data;
Mass = 8kg
Net force = 10N
To find the acceleration;
Acceleration = net force/mass
Acceleration = 10/8
<em>Acceleration = 1.25m/s²</em>
C. For object C, given the following data;
Mass = 7kg
Net force = 7N
To find the acceleration;
Acceleration = net force/mass
Acceleration = 7/7
<em>Acceleration = 1m/s²</em>
Therefore, placing the objects in decreasing order, according to the magnitude of the acceleration they are experiencing is B, C, A
Answer :
The correct answer is due to incorrect position of thermometer .
Distillation is process of separating two volatile liquids on the basis of their boiling points .In involves the following set up ( shown in image )
Since the Boiling point is found is 116-117 C which is near to 124 C , also the purity was checked and thermometer was calibrated .
So the only error could be possible is position of thermometer .
The position of bulb of thermometer is very important to get an accurate reading of boiling point .The vapor so formed should touch the side walls of bulb as soon as they are formed .
May be the bulb of thermometer was kept far from the vapors formed by liquid so, s<u>ome of the vapor before reaching to bulb start condensing and their Temperature decreases </u>.
Hence , the temperature shown by thermometer was decrease than actual boiling point due to incorrect position of thermometer.
Not always ammonium salts of weak acids form neutral solutions.
When formic acid reacts with ammonia, ammonium formate is produced:
HCO2H + NH3 ----> NH4HCO2
You already know that the weak conjugate bases of NH3 and HCO2H are NH4+ and HCO2, respectively.
How can the pH of the solution be calculated if the salt's anion causes the pH to rise and the salt's cation causes it to fall? The relative intensities of the basic anion and the acidic cation hold the key to the solution.
As was already established, formate is a weak base and will create hydroxide ions in water, whereas ammonium is a weak acid and will make hydronium ions in water.
NH4⁺ + H2O -----> NH3 + H3O⁺
HCO2⁻ + H2O -----> HCO2H + OH⁻
Since the acid ionization of NH4+ is more favored than the base ionization of HCO2-, the solution will be acidic.
To learn more about ammonium salts:
brainly.com/question/10874844
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It would begin osmosis on it. If you put it in vinegar for example water would begin to seep through the membrane.
Answer:
the compound formed between nitrogen and magnesium is Magnesium Nitride
