The correct answer is the Tyndall effect. This is also known as the Tyndall scattering. It is the light scattering by the particles in a colloid or in a suspension. This phenomenon is used to determine size and density of particles in colloidal matter.
Answer:
a. True
Explanation:
The bond angle for methane is the angle determined by two consecutive hydrogen atoms and the central carbon atom.
Methane, a tetrahedron has the structural formula:
H
|
H - C - H
|
H Methane, CH4
The bond angle is the angle between the H-C-H atoms and is 109.5degrees.
Is this prier to a lab you've done?
Answer:
The statement that best describes the use of catalytic converters in automobiles is;
They oxidize hydrocarbons to form less toxic gases
Explanation:
Catalytic converters
A working engine produces some air pollutants which are made due to fuel not completely burnt in the engine, including unburnt gasoline (a hydrocarbon), nitrogen oxides, and carbon monoxide
Carbon monoxide is poisonous to breathe in if present in the air around us, and nitrogen oxides causes acid rain and smog, while hydrocarbon from the gasoline causes smog
The catalyst in the catalytic converters aids in the conversion of the harmful gases produced by the car engine into harmless gases such as the types of gases already existing in the atmosphere and therefore, can be released into the air
The catalysts in the catalytic converter work by either oxidizing some of the harmful gases such as the unburnt hydrocarbons, or by reducing the other harmful gases such as the nitrogen oxides.
Therefore, the statement that best describes the use of catalytic converters in automobiles is that they oxidize hydrocarbons to form less toxic gases
