Answer:
C
Explanation:
u can't touch a chemical with bare skin
The best and most correct answer among the choices provided by the question is the second choice , b. sodium hydroxide .
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Answer : The pressure in the flask after reaction complete is, 2.4 atm
Explanation :
To calculate the pressure in the flask after reaction is complete we are using ideal gas equation.
where,
P = final pressure in the flask = ?
R = gas constant = 0.0821 L.atm/mol.K
T = temperature =
V = volume = 4.0 L
= moles of = 0.20 mol
= moles of = 0.20 mol
Now put all the given values in the above expression, we get:
Thus, the pressure in the flask after reaction complete is, 2.4 atm
The period of the life cycle during which positive nitrogen balance is most likely to occur is childhood.
<h3>What is nitrogen balance?</h3>
The term nitrogen balance refers to the fact that there is a balance between the intake and the loss of nitrogen. The intake of nitrogen occurs when a person takes in food that contain proteins which are a rich source of nitrogen in the body and helps in the process of the build up of the cells in the body.
The period of the life cycle during which positive nitrogen balance is most likely to occur is childhood.
Learn more about nitrogen balance:brainly.com/question/14570903
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Answer:
The base must be ethylamine.
Explanation:
The pH of solution of a weak base gives us an idea about the Kb of the base.
The relation between Kb and hydroxide ion concentration is:
Thus the weak base must be ethylamine.