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Juli2301 [7.4K]
3 years ago
14

Plz help its science

Chemistry
1 answer:
Naya [18.7K]3 years ago
8 0
The answers are in the attached file

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Last question<br> help<br> im confusion
Andrej [43]

Remark

The given thing on the right is a positron. The mass for these subatomic particles is considered to be 0. It's atomic number is 1 which means it is a blood relative of a proton.

So essentially what happens is that X is one space to the left on the periodic table. But let's solve this a little bit more formally.

Solution

_{65}^{147}\text{Tb}\longrightarrow _{z}^{y}\text{x} +_{1}^{0}{e}

y stays the same at 147. It is z that changes.

65 = z + 1     Subtract 1 from both sides.

64 = z

So the chemical with 64 as its position on the periodic table is

Gadolinium and the answer is C

5 0
3 years ago
HELP PLEASE !!!!
love history [14]
<span>Answers are:
-4 for C in CH4, because carbon has greater electronegativity than hydrogen and he attracts shared electrons.
</span><span>+4 for C in CO2, because carbon has smaller electronegativity than oxygen.
</span><span>+1 for H in both CH4 and H2O, because hydrogen has amaller electronegativity than both carbon and oxygen. 
</span>
7 0
3 years ago
Read 2 more answers
If the mass of a material is 104 grams and the volume of the material is 21 cm3, what would the density of the material be?
WITCHER [35]
Remembering that
d = m ÷ v

d = ?
m = 104 g
v = 21 cm³

Therefore:

d = 104 ÷ 21

<span>d = 4,95 g÷cm³</span>
6 0
3 years ago
Chemistrys forerunners​
oksian1 [2.3K]

Answer:

huhhhhhhhhhhhhhhhhhhh??

4 0
3 years ago
Which orbitals can overlap to form a pi bond?
Yanka [14]

The correct option is A)

They overlap to form a pi bond


And yes, if a question of yours gets deleted, the amount of points you used are automatically transferred back to your account

Hope this helps

-AaronWiseIsBae

5 0
3 years ago
Read 2 more answers
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