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Inessa05 [86]
3 years ago
15

The website of a popular stargazers club notes that on Wednesday the moon will rise at 6:23 PM and set at 6:12 PM on Thursday. W

hat is a mistake in this information?
A) The moon sets before 6:00 PM everyday
B) The setting time should have been 6:12 AM
C) The moon rises only after 9:00 PM everyday
D) It is difficult to predict when the moon would set
Chemistry
2 answers:
astraxan [27]3 years ago
6 0

It's C that's correct because it's very true...

erma4kov [3.2K]3 years ago
5 0

Answer:

the answer is B

Explanation:

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Answer:

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Which of the following produces a chemical change?
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Exposure to chemicals.
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atroni [7]

Answer:Noble gases:

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7 0
2 years ago
Predict the electronegativity of the yet undiscovered element with Z = 119.
Lera25 [3.4K]
We know that the element Z = 119 would be placed right below the Fr, in the column of the alcaline metals.

We also know that the trend in the electronegativity is to decrease when you go up-down ia group.

The known electronegativities of the elements of this group are:

Li: 0.98
Na: 0.93
K: 0.82
Rb: 0.82
Cs: 0.79
Fr: 0.70

Then the hypotetical element Z = 119 would probably have an electronegativity slightly below 0.70, for sure in the range 0.60 - 0.70.



4 0
3 years ago
Covalent compounds occur------
irga5000 [103]

Answer:

Only between nonmetals

Explanation:

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  • Covalent compounds occur only between non metals, where atoms of the nonmetals involved join to form a covalent bond as a result of sharing of electrons.
  • <u><em>Electrons shared during the formation of covalent bond, may be from one atom involved or each atom contributing equally to the bond formation.</em></u>
  • An example of covalent compounds include, phosphorus (v) oxide, methane, water, CO2,etc.
4 0
3 years ago
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