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nlexa [21]
3 years ago
6

HURRY I NEED TO GET OFF SOON PELASEE THIS IS ALSO FOR A 60 POONT GRADE ITS SO IMPORTANT WILL GIVE BRAIN LIEST

Chemistry
1 answer:
loris [4]3 years ago
7 0

Answer:

C is the right answer

Explanation:

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The atomic number of an element is 71. is this element diamagnetic or paramagnetic?
Mrrafil [7]
The  element  with atomic  number  71(lutetium) is  paramagnetic

  This  is  because  all  its   electrons   is  not  paired .  lutetium  has  electron  configuration  of  (Xe) 4f^14 5d^1 6S^2
Its 5d   sub shell  is  not  paired  since  the  d  sub shell  can  accommodate  a total  of  10   electrons  hence  lutetium  is  paramagnetic
5 0
3 years ago
Read 2 more answers
Worth *20 points* Helpppp
Lera25 [3.4K]
Yes. a linear graph does. Pass the vertical line test

Each value in the domain X,results in a unique range ,y, value
5 0
3 years ago
2H2 + O2 → 2H2O
pantera1 [17]
Okay
Mr (H2O)= 18g
therefore moles of H2O
is 720.8/18= 40.04mol
the ratio of H2 to O2 to H2O is
2 : 1 : 2
so moles of H2 is same as H2O here
H2= 40.04moles

moles of O2 is half
so 40.04 x 0.5
20.02moles

grams of O2 is
its moles into Mr of O2
that's 20.02 x 32 = 640.64g

6 0
3 years ago
The number of electrons (e- ) is
levacccp [35]

Answer:

The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus. The number of neutrons is equal to the difference between the mass number of the atom (M) and the atomic number (Z).

Explanation:

6 0
3 years ago
In which volcanic eruption is pyroclastic materials released
juin [17]


There are many kinds of pyroclastic material ejected during a volcanic eruption. Ash is the most common pyroclastic rock material ejected during an eruption. Volcanic ash is so fine that it can be blown into the atmosphere and picked up by the jet stream where it can circle the Earth for several years.

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3 years ago
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