Answer:NaOH
Explanation:all are acids except NaOH
Answer:
+1
Explanation:
A Potassium atom is represented with the sign "K" in chemistry and have atomic number 19.
The charge of electrons causes a matter to experience a force and it can be positive or negative.
In Potassium atom, the electric charge is +1 to enter a stable electron configuration as there is only one valence electron in the outermost shell of potassium atom. As potassium atom will lose electron it will become positively charged.
Hence, the correct answer is "+1".
Answer:
r = 0.0018 molxL⁻¹xs⁻¹
t = 472.22 s
Explanation:
The rate of the reaction is given by:
Where <em>r</em> is the rate, <em>k</em> is the rate constant, <em>[A]</em> is the initial concentration of the reactant and <em>n</em> is the order of the reaction. So, for this problem:
r = 0.0018x[1.70]⁰
r = 0.0018 molxL⁻¹xs⁻¹
The rate is also the variation of the concentration divided by the time. So, for the half-life, the concentration will be decreased by half and will be 0.85 mol/L. So the variation will be 1.70 - 0.85 = 0.85 mol/L. So:
0.0018 = 0.85/t
t = 0.85/0.0018
t = 472.22 s
Lipids serve as structural components of cell membranes, function as energy storehouses, and function as important signalling molecules. They include fats, waxes, oils, hormones, and certain components of membranes and function as energy-storage molecules and chemical messengers.
Hope this helped :)
D. Viral disease
Because it’s a virus that spreads around to other people and need a vaccine to combat it