First question:
As the pH meter gives a specific level of acidity instead of a physical change, it is more accurate in numbers making it easier to distinguish smaller differences in pH.
2nd question:
The pH meter gives a digital readout.
The pH meter uses numbers instead of colors.
<span>The pH meter can distinguish between smaller differences in pH than pH strips can.
</span>
The one not mentioned above isn't true ^
Answer:
Explanation:
GIven that:
The activation energy = 250 kJ
k₁ = 0.380 /M
k₂ = ???
Initial temperature 
1001 K
Final temperature 
298 K
Applying the equation of Arrhenius theory.
where ;
R gas constant = 8.314 J/K/mol
/M .sec
Half life:
At 1001 K.
1.82368 secc
At 298 K:
Answer:
I believe:
vertebrate: hummingbird, tiger, lobster
invertabrate: lizard, octopus, mosquito
Answer:
K = 0.167
Explanation:
The equilibrium constant, K of a reaction, is defined as the ratio of the concentrations of products and concentrations of reactants.
For the reactions:
A + B ⇄ C + D
For the definition, K is:
K = [C] [D] / [A] [B]
K = [4.0M] [4.0M] / [9.6M] [10.0M]
<h3>K = 0.167</h3>
Answer:
I think is b
Explanation:
if im wrong, heres some information:
mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium.[1] While waves can move over long distances, the movement of the medium of transmission—the material—is limited. Therefore, the oscillating material does not move far from its initial equilibrium position. Mechanical waves transport energy. This energy propagates in the same direction as the wave. Any kind of wave (mechanical or electromagnetic) has a certain energy. Mechanical waves can be produced only in media which possess elasticity and inertia.
