Experimentation is the best way to obtain knowledge, because it is the only actual factual thing in the options
Answer:
Metal
Explanation:
Na or sodium though soft... it is a metal...
Answer: Fe(OH)2
Explanation: Fe has a charge of 2+ and OH has a charge of 1-. Switch the charges of the two elements to get the formula of Fe(OH)2.
Dilution is the process of “lowering the concentration of a solute in a solution by simply adding more solvent to the solution, such as water.” Diluting a solution entails adding more solvent without adding more solute.
<h3>How do you do dilution in math?</h3>
The number of dilutions is equal to the number of times the dilution factor will be multiplied by itself to equal the starting concentration divided by the final concentration. So with a dilution factor of 10, 10 to the X power is equal to the starting concentration divided by the final concentration.
<h3>How do you find the dilution of a solution?</h3>
You can solve for the concentration or volume of the concentrated or dilute solution using the equation: M1V1 = M2V2, where M1 is the concentration in molarity (moles/Liters) of the concentrated solution, V2 is the volume of the concentrated solution, M2 is the concentration in molarity of the dilute solution.
Learn more about dilution here:
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brainly.com/question/1553819</h3><h3 /><h3>#SPJ4</h3>
Answer:
The neck, Tongue, Heart and circulation and Lungs.
Explanation:
The Neck: The total length of the giraffe's neck is 6 feet and carries the muscles of about 550 pounds. But the unique characteristics is that it has same vertebrae as humans have i.e. 7. And to support these heavy muscles at the base of the neck spines are there projecting upwards.
The Tongue: Giraffe has a very avaricious long tongue that helps it to gets different vegetation.
Heart: Surprisingly the heart of the giraffe is small in structure yet powerful. And the blood pressure is quite high, double relatively to human so to pump the blood to its brain along with the long neck.
