A solid precipitate is formed from the reaction of lead nitrate and sodium chromate. What would be the best method to separate this solid from the solution?
Answers
Here are the choices:
A. Distillation
B. evaporation
C. Filtration
D. Sorting
Explanation:
A precipitate is an insoluble solid that does not dissolve in a chemical reaction or or mixture.
For example,
Therefore, the precipitate formed can be separated out by filtration method.
As this method will most suitably extract the precipitate and separate it from the remaining solution.
Related Questions
If an atom has 5 electrons outside of its nucleus, which combination of protons and neutrons would result in a neutral atom?
The kidney is a (n) _______. The excetory system is a (n)_______.
A hollow tube that holds the eyepiece lens and or mirrors
When salt dissolves in water, which is the solvent
Answers
1. is always exactly the same in all areas of science
2. can be used to organize scientific investigation
3. begins with communication
4. is a logical series of steps
5. answers all questions
Answers
Final answer:
The scientific method is a flexible framework used to organize scientific investigation that begins with communication and is a logical series of steps. It does not answer all questions.
Explanation:
The scientific method is a logical series of steps that can be used to organize scientific investigation. It does not have to be the same in all areas of science; rather, it is a flexible framework that can be adapted based on the specific field of study. The scientific method begins with communication, as scientists often share their findings with the scientific community through research papers and presentations. However, the scientific method does not answer all questions; it is a systematic process that allows scientists to test and evaluate hypotheses, but it does not provide definitive answers to all inquiries.
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Answers
Answers
Final answer:
If an average cell phone is dropped from a typical cruising altitude of an airplane, neglecting air resistance, it would take about 107 seconds to reach the ground.
Explanation:
The subject this question falls under is physics because it involves the physical principles of gravity and free fall. If we ignore air resistance (a common simplification in basic physics problems), we can solve this problem by employing the equation for the time (t) of a free-falling object:
t = √(2h/g),
where h is the height the object falls from and g is acceleration due to gravity (about 9.8 m/).
Notice that we would need to first convert 37,000 feet to meters (about 11,277.6).
By substituting these values into our formula, we get a value that indicates that a phone falling from the typical cruising altitude of an airplane would take about 107 seconds to hit the ground.
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Answers
Answer:
20 kmp
Explanation:
because if you divide 50 with 2.5 you get the speed per hour
2. Feels slippery to the touch
3. Reacts with active metals to produce hydrogen gas
4. Increases the concentration of hydroxide ions in an aqueous solution
Answers
Base has formula .
Example of a base is a soap,
and it has a bitter taste, feels slippery to the touch.
From the formula we can see that a base has hydroxide ion (OH), so a base increases the concentration of hydroxide ions in an aqueous solution.
3. Reacts with active metals to produce hydrogen gas is not a property of the base; this is a property of acids.