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From my calculations the answers are:
D. Mass
B. Gravity
B. Gravity
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Answer:
The attached figure shows the structure of dimethyl terephthalate.
Explanation:
Dimethyl terephthalate is a compound whose formula is C6H4 (COOCH3) 2. It is a diester produced from terephthalic acid and methanol. It is characterized by being a white solid. Another method for the preparation is from p-xylene and methanol, which is characterized by having an oxidation and an esterification.
Answer/Explanation:
Things that will vary include the distribution of electrons between atoms, lone pairs, and bonds, the number of single vs double or triple bonds, and the formal charges on atoms in the structure.
All resonance forms of the same molecule or ion must have the same number of atoms, connected in the same way, and the same number of total electrons.
Answer:
Explanation:
Physical and chemical properties of acids:
Acids are sour in taste.
All acids have pH less than 7.
All acids turns blue litmus paper red.
Acids react with metals and form salts.
HCl + Mg → MgCl₂ + H₂
Acids react with base and form salt and water.
HCl + NaOH → NaCl + H₂O
Acids react with carbonates and form carbon dioxide, water and salt.
2HCl + CaCO₃ → CaCl₂ + H₂O + CO₂
Physical properties of bases:
All bases are bitter in taste.
They turn litmus paper from red to blue.
They are slippery.
All bases have pH above 7.
Bases react with acid and form water and salt.
NaOH + HCl → NaCl + H₂O
Bases conduct electricity.
Bases such alkali when react with water produces OH⁻.
Answer: healing a wound
Explanation:
The healing of the wound is the example of maintenance of the structure. The wound is the injury which disturbs the continuity of the skin surface. It can affect the dermal and epidermal layer of the skin. The wound if severe or deep can damage the bones. The wound can be caused by the cut, blow or punch, impact or fall from height. The healing of the wound may take several days to weeks. The wound healing involves the replacement of the damaged or destroyed cells or tissues by new cells or tissues in the body or the wound site.
