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Dahasolnce [82]
3 years ago
9

Describe the negative effects of wind machines

Chemistry
1 answer:
Norma-Jean [14]3 years ago
8 0
To much wind could cause damage
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What is the IUPAC name of this compund?​
mr_godi [17]

Answer:

3-ethyl-4-methyl Heptane

Explanation:

longest chain is straight .

we start assigning number from where we are close to the branch to this mean its from left hand side. and we saw two chain 1 is ethyl and other is methyl . In alphabetical order e comes first as compare to m so we write ethyl first after that methyl and than in last we write longest chain name with ane (bcz we only have single vonds).

4 0
3 years ago
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Significant digits are the number of digits that reflect the precision of a measurement or number.
Delvig [45]

Answer:

True

Explanation:

Significant digits are numbers that helps to present the precision of measurements calculations.

Numbers that do not contribute to the precision of a reading should not be counted as significant.

There are rules of assigning significant numbers:

  • Leading or trailing zeros are insignificant and should only be counted as a place holder.
  • All non-zero digits are significant
  • Zeroes between non-zero digits are significant.
  • Leading zeros in a decimal are significant before the number.
  • All the numbers in a scientific notation are significant.
5 0
3 years ago
Which element has a +2 charge and has a <br> configuration of 1s22s22p3? <br> A) B <br> B) F
PSYCHO15rus [73]

Fluorine(F)

Explanation:-

  • Fluorine has Z=9
  • +2 charge means 2 electrons donated (7left only)

Lets look at Electronic configuration

\\ \sf\longmapsto 1s^22s^22p^3

6 0
2 years ago
Why is earth likely unique in it volume of liquide water
Karolina [17]
It is unique because we can drink from it .
4 0
2 years ago
Is a glass window good reflector of heat??
Inessa05 [86]

Answer:

Yes, Is a glass window good reflector of heat.

4 0
3 years ago
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