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bulgar [2K]
3 years ago
13

According to Bohr atomic model

Chemistry
1 answer:
nata0808 [166]3 years ago
7 0

Answer:

A small positively charged nucleus surrounded by revolving negatively charged electrons in fixed orbits

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Why do nitrogen and oxygen form negative ions, not positive ones, in simple binary compounds.
gavmur [86]

Answer:

it is easier for them to have an octet of electrons(8e)

Each ion will: obtain the noble gas structure, each atom has high ionization energy

Explanation:

.

5 0
2 years ago
Calculate the molarity of 139 grams of sucrose, C12H22O11, in 2.60 liters of solution.
Allisa [31]

Answer:

to calculate the molarity of the said sucrose,

firstly calculate the moles

which is = Molecular weight of C12H22O11 = 342g/mol

then

moles = 139/342

= 0.41 moles

to calculate Molarity now

Molarity= moles of the solute/volume of solution in liter

=0.41/2.60

=0.158M

Explanation:

4 0
3 years ago
Calculate the number of oxygen atoms in a 50.0 sample of dinitrogen tetroxide . Be sure your answer has a unit symbol if necessa
GenaCL600 [577]

Answer:1.309 x 10^24 oxygen atoms

Explanation:

Molar mass of N2O4,=  2 x Molar mass of Nitrogen + 4 x Molar mass of Oxygen

= 2 x 14.01 + 4 x 16.0

= 92.02 g/mol

One mole of a substance is equal to 6.022 × 10²³ unit/ atoms/ molecules

In N2O4, there are 4  moles of Oxygen

if 92.02 g contains = 4 x 6.022 x 10 ^23 molecules

50.0 g wll contain=  (4 x 6.022 x 10 ^23  x 50)/ 92.02g

1.309 x 10^24 oxygen atoms

3 0
3 years ago
How to find the charge of an element
katrin2010 [14]

Answer:

the atomic number is how you find the charge

7 0
3 years ago
A soccer player kicked a soccer ball up the hill which statement is true
Damm [24]

Answer:

the boy is on Steroids

Explanation:

5 0
3 years ago
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