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gulaghasi [49]
3 years ago
11

What is the correct name for the following compound: P2Br5

Chemistry
1 answer:
Ede4ka [16]3 years ago
7 0

Answer:

Diphosphorus pentabromide is the official name.

Explanation:

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Give the nuclear symbol for the isotope of silicon for which a=29? Enter the nuclear symbol for the isotope (e.G., 42he).
quester [9]

The mass number is the summation of number of proton and neutron present in a nucleus of an atom. For the neutral atom the number of positive charge (number of proton) must be equal to the number of electrons. The number of electrons present in an atom is the atomic number of the atom. The standard way to express the mass number (a) and atomic number (m) of a atom (say X) is x^{a}_{m}. Now for silicon number of electron or atomic number is 14. And the mass number (a) given 29. Thus the expression nucleus of silicon will be Si^{29}_{14}

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3 years ago
6th grade help me pleaseeee
lozanna [386]

Answer:

D

Explanation:

The atomic number is the amount of protons in the nucleus of every atom in a specific substance

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3 years ago
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Consider the titration of 30.0 mL of 0.050 M NH3 with 0.025 M HCl.
Alla [95]

Answer:

60.0mL

Explanation:

For the process of titration , the formula we use is -

M₁V₁ = M₂V₂

Where ,

M₁ = initial concentration

V₁ = initial volume

M₂ = final concentration

V₂ = final volume .

Hence , from the question ,

The given data is ,

M₁ = 0.050 M

V₁ = 30.0mL

M₂ = 0.025 M

V₂ = ?

Now, to determine the unknown quantity , the formula can be applied ,

Hence ,

M₁V₁ = M₂V₂

Putting the respective values ,

0.050 M * 30.0mL = 0.025 M * ?

solving the above equation ,

V₂ = ? = 60.0mL

6 0
3 years ago
Draw a basic atom (Bohr model showing me where everything is located in the above chart).
tino4ka555 [31]

Answer:

thhe anwer is d

Explanation:

the answer is d just took the quiz got 100 on edge 2022

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