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2 years ago

R

Chemistry

1 answer:

guajiro [1.7K]2 years ago

4 0

Answer:

C.) 35

Explanation:

The mass is made up of the total protons and neutrons in an atom. Protons and neutrons both have a mass of 1 amu. Electrons are not included in this measurement because they have an insignificant mass (practically 0).

(17 protons x 1 amu) + (18 neutrons x 1 amu) = 35 amu

Therefore, if an atom contains 17 protons and 18 neutrons, the mass should be 35 amu.

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At a given temperature, the elementary reaction A --->B in the forward direction is first order in A with a rate constant of

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The value of the equilibrium constant for the reaction B ⇒ A is K'c = 5.81 × 10⁻⁴.

Explanation:

For the reaction A ⇒ B, the equilibrium constant (Kc) is equal to the forward rate constant (kf) divided by the reverse rate constant (ki).

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3 years ago

If the atomic number of an element is 6 and its mass number is 4 how many neutrons are contained in the nucleus? A. 14 B. 6 C. 8

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3 years ago

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Answer:

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2 years ago

Two workers used a force of 100 N to move a sofa 4 meters in 2 seconds how much power

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Answer:

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