Answer:
You did not provide any details about the experiment, nor provided any answers for us from which to choose "the best answer" from. Please refine your question next time.
Explanation:
There u go. the valence electrons can be no more than eight on the first ring and you only have 4
Answer: Option (c) is the correct answer.
Explanation:
HF is a weak acid and not a strong acid. This is because fluorine is a highly electronegative atom and when it combines with a hydrogen atom then it will attract the valence electron of hydrogen atom more towards itself.
As a result, it will not dissociates easily to give hydrogen ion. Hence, it acts as a weak acid.
A neutralization reaction is defined as a reaction in which an acid reacts with a base to give salt and water. For example,
It is true that, spectator ions "appear in the total ionic equation for a reaction, but not in the net ionic equation".
Titration is defined as a process in which concentration of an unknown solution is determined using a solution of known concentration.
Thus, we can conclude that the statement HF, HCl, and HNO3 are all examples of strong acids, is false.
Answer:
Gently place 2 fingers of your other hand on the left side of your chest. · Do not use your thumb because it has its own pulse that you may feel. · Count the beats for 30 seconds
Explanation:
Heart rate can be measured using electrocardiography, pulse ... Heart rate is generally expressed as the number of beats per minute (bpm). ... Because perfect accuracy is not always required in pulse-counting,
First convert the given volume of hydrogen gas to grams by
multiplying the volume with the given density. The mass of hydrogen gas is
22.50197 grams. Then convert the mass of hydrogen to moles by dividing it with
its molar mass. Multiply the moles of hydrogen gas with 2/3 because in the
formation of ammonia you would need 3 mol of hydrogen to form 2 moles of
ammonia. Then multiply the moles of ammonia with the molar mass which is 17.031
grams. The mass of ammonia is 126.48 grams.