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fiasKO [112]
3 years ago
13

Match each form from energy with its description

Chemistry
1 answer:
Yanka [14]3 years ago
3 0
Green with the first one
Blue with the second one
Orange with the third one

So basically there already all lined up
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Koja od navedenih atomskih orbitala nije moguća? a) 2d b) 3s c) 4p d) 5f​
pickupchik [31]

Answer:

2d

Explanation:

2d nije moguće. moguće je samo 3d do 7d. provjeri periodni sustav!

ako ne razumiješ, obrati mi pažnju

8 0
2 years ago
Magnesium has three naturally occurring isotopes with masses of 23.99 amu, 24.99 amu, and 25.98 amu and natural abundances of 78
mihalych1998 [28]

Answer:24.31

Explanation:Contribution made by isotope of mass 23.99= 23.99×78.99=1894.97

Contribution made by isotope of mass 24.99=24.99×10.00=249.9

Contribution made by isotope of mass 25.98=25.98×11.01=286.04

Total contribution=1894.97+249.9+286.04=2430.91

Average mass=2430.91÷100

=24.31

3 0
3 years ago
What is my theoretical yield (in moles) of Potassium Bromide (KBr) if I start with 40 grams of Iron (II) Bromide [FeBr2]? moles
Verizon [17]
The reaction will be: FeBr2 + K --> KBr + Fe
Balancing gives: FeBr2 + 2K --> 2KBr + Fe
The molar mass of FeBr2 is 55.85 + 2*79.9 = 215.65 g/mol.
We divide 40 g / 215.65 g/mol = 0.185 mol FeBr2
Based on stoichiometry:
(0.185 mol FeBr2)(2 mol KBr/1 mol FeBr2) = 0.370 mol KBr
4 0
4 years ago
An atom has 17 protons and 18 neutrons.
Wewaii [24]

Answer:

Cl

Explanation:

cl has mass number 35 and its atomic number is 17 so number of proton =atomic number 17 and number of neutron is =mass number -number of proton =35-17 =18

3 0
3 years ago
Question 5(Multiple Choice Worth 5 points)
mars1129 [50]

Answer:

Density

Explanation:

8 0
2 years ago
Read 2 more answers
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