Answer: Heat is removed from a gas, and the substance becomes a liquid.
Answer:
H2 + O2
Explanation:
H2 + O2 --> H2O
The items on the left side is the reactants. The arrow means yields, and the item the arrow is pointing at is the product.
Answer: Carbon nanotubes, especially multi walled carbon nanotubes, are so strong because they are a single chain of unbroken covalent carbon-carbon bonds.
Explanation:
Metalloids are metallic-looking brittle solids<span> that are either semiconductors or exist in semiconducting forms, and have amphoteric or weakly acidic oxides. Typical </span>nonmetals<span> have a </span>dull<span>, coloured or colourless </span>appearance<span>; are </span>brittle<span> when </span>solid<span>; are poor conductors of heat and electricity; and have acidic oxides.</span>
The two factors that are mainly responsible for determining the thermal energy of a substance are Temperature and Mass.
<h3><u>Explanation:
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Thermal energy is the total energy of the substance.
Temperature: The temperature and thermal energy of a substance are directly related to each other(direct proportion) which means that the greater the temperature, the greater will be the thermal energy of that particular substance.
Mass: Consider a situation, if we have two or more substances that have the same temperature the substance with the highest mass will have the most thermal energy than the others.
