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zloy xaker [14]
3 years ago
5

The diagram below shows some subatomic particles. A diagram similar to a flowchart starts with a circle labeled Atom. From there

, a line leads to a small circle labeled Electron and a larger one labeled Nucleus. From nucleus, two lines lead to a group of circles, labeled Neutrons and protons. From there, two lines lead to a circle surrounding two blue and one orange smaller circles. One of the blue circles is labeled with a question mark. What is the particle that is labeled with a question mark (?) in the diagram?
Chemistry
2 answers:
barxatty [35]3 years ago
7 0

Answer:

B) Quark

Explanation:

Aleksandr-060686 [28]3 years ago
6 0

Answer:

The shaded area 2 is likely to have subatomic particle that are constantly in motion. I took the test and I got it right

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5) B

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hen a chemical reaction occurs, the physical and chemical properties of the reactants are the same as the properties of the prod
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Explanation:

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3 0
4 years ago
2Pb(s) + O2(aq) + 4H+(aq) → 2H2O(l) + 2Pb2+(aq)
defon

Answer:

The answer to your question is 0.269 g of Pb

Explanation:

Data

Lead solution = 0.000013 M

Volume = 100 L

mass = 0.269 g

atomic mass Pb = 207.2 g

Chemical reaction

                        2Pb(s) + O₂(aq) + 4H⁺(aq) → 2H₂O(l) + 2Pb₂⁺(aq)

Process

1.- Calculate the mass of Pb in solution

Formula

Molarity = \frac{number of moles}{volume}

Solve for number of moles

Number of moles = Volume x Molarity

Substitution

Number of moles = 100 x 0.000013

Number of moles = 0.0013

2.- Calculate the mass of Pb formed.

                       207.2 g of Pb ----------------- 1 mol

                             x g             ----------------- 0.0013 moles

                        x = (0.0013 x 207.2) / 1

                        x = 0.269 g of Pb                                                                

8 0
4 years ago
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All the isotopes of a given atom have "<span> different mass numbers but the same atomic number "</span>
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