Answer:
Explanation: in exothermic reaction heat is released out
In endothermic reaction heat is absorbed
Answer:
petroleum, a fossil fuel, is extracted from the earth and mechanically transformed into fibers for clothing.
Explanation:
synthetic materials, like polyester, nylon and acrylic, don't exist naturally but are made in factories. Synthetics are created through an industrial manufacturing process in which
Answer:
The band that looks like milk in the night sky isn't actually milk,
Explanation:
Which is a trait of a technical text?
Functional groups create reactive sites in molecules.
The polar part of a molecule that can hydrogen bond to water is said be hydrophilic.
Pi (π) bonds create active sites and will react with electron-deficient species.
A electronegative heteroatom like nitrogen, oxygen, or a halogen makes a carbon atom electrophilic.
(carbon will have less electronic density, which is attracted by the more electronegative heretoatoms, and it will tend to attract electron rich chemical species, and in this situation we say that the carbon atom is electrophilic).
The nonpolar part of a molecule that is not attracted to water is said to be hydrophobic.
A lone pair on a heteroatom makes it basic and nucleophilic.
(the heteroatom with the lone pair will tend to attract electron poor chemical species, and in this situation we say that the heteroatom is nucleophilic).
<span>i believe its water has a high temperature. hope i helped</span>