Answer:
A vacuum flask is usually used to insulate it's contents… I've used them for a multitude of things ranging from keeping my coffee warm, to keeping liquid nitrogen from evaporating.
The reason these types of flasks are so efficient has to do with their thermodynamic properties. To understand how a vacuum flask works, we need to know the basic properties of a vacuum. Air just like any other molecule is a conductor of heat.
Firstly, a “layer of vacuum” is created around the thermos, it's crucial that the chamber is depressurized*.
C. Convection cells
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Mantle convection is the moderate crawling movement of Earth's strong silicate mantle brought about by convection flows conveying heat from the inside to the planet's surface. Mantle convection, is a significant technique for heat transport inside the Earth. Mantle convection is the driving component for plate tectonics, which is the procedure eventually liable for delivering tremors, mountain ranges, and volcanoes on Earth. During the movement of warm and cooler mantle rocks, convention cells are created which acts as a pocket that creates force for the movement of tectonic plates.
Neon is the element that is classified as a noble gas at STP.
Answer:
D. Two reactants combine to form one product
Explanation:
The definition of synthesis in chemistry is "the production of chemical compounds by reaction from simpler materials."
A is decomposition, B is DOUBLE replacement, and C is SINGLE replacement.