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3 years ago

Which of the following is true of subatomic particles in a nucleus of vanadium-50?a.

Chemistry

1 answer:

Doss [256]3 years ago

6 0

From the image provided, we can see that the atomic number of Vanadium is 23. Atomic number = number of protons. It is like an ID card number for the element and no other elements have the same proton / atomic number. Therefore, we can already eliminate B and C because their proton number is not correct.

Vanadium-50 is an isotope of Vanadium. the '50' means that the sum of protons and neutrons in the isotope equals to 50. We can calculate the number of neutrons by subtracting 23 from 50. Therefore, we know that the number of neutrons is 27.

So, D is the correct answer.

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tatiyna

Answer:

so you answer would be B

Explanation:

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3 years ago

True/False Chemistry

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Explanation:

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3 years ago

2NO (g) + O2 (g) →2NO2 (g) At equilibrium [NO] = 2.4 × 10 -3 M, [O2] = 1.4 × 10 -4 M, and [NO2] = 0.95 M.

azamat

Answer:

$K=1.12x10^9$

Explanation:

Hello there!

Unfortunately, the question is not given in the question; however, it is possible for us to compute the equilibrium constant as the problem is providing the concentrations at equilibrium. Thus, we first set up the equilibrium expression as products/reactants:

$K=\frac{[NO_2]^2}{[NO]^2[O_2]}$

Then, we plug in the concentrations at equilibrium to obtain the equilibrium constant as follows:

$K=\frac{(0.95)^2}{(0.0024)^2(0.00014)}\\\\K=1.12x10^9$

In addition, we can infer this is a reaction that predominantly tends to the product (NO2) as K>>>>1.

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3 years ago

How many liters of Carbon Tetra Oxide gas in 152.0 grams?

sattari [20]

Answer:

Hello

so ur answer is

56.74L

Explanation:

thanks... hope it helps

6 0

3 years ago

Why would someone need to find the relative density of an object?

Ede4ka [16]

Answer:

The relative densities of an object and the liquid it is placed in determine whether that object will sink or float. An object that has a higher density than the liquid it's in will sink. An object that has a lower density than the liquid it's in will float.

Explanation:

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