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Monica [59]
3 years ago
5

What information is required to calculate the average atomic mass of an element

Chemistry
1 answer:
Maksim231197 [3]3 years ago
8 0

Answer:

The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by its natural abundance

Explanation:

To determine the average atomic mass, we require abundance of every isotope in the nature.

Average atomic mass is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

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The energy of moving particles in a substance
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Answer: D, Thermal energy

Explanation: particles in a substance will move for one reason. That reason is heat. The hotter the substance the more the particles will move.

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4 years ago
This type of fatty acid contains more than one double bond in its hydrocarbon chain.
Simora [160]
Polyunsaturated fatty acids contain more than one double bond in its hydrocarbon chain.
6 0
3 years ago
Why did Mendeleev put bromine (Br) and chlorine (Cl) in the same group on the periodic table?
Kaylis [27]
They have similar properties.Bromine and Chlorine both have equal chemical properties. They both have 7.electrons in the outermost energy level. They both gain 1 electron to get the. noble gas configuration.Cl and Br have same chemical properties. They have 7,valence electrons. They both are non-metals. Bromine and chlorine are in group VII A, which could also be designated Group 7a, of the narrow form periodic table that was commonly used before 1980. Most chemists now prefer a wide form periodic table, in which these elements are in column 17. The periodic table has been set up to illustrate the repeating nature of the elements as we progress along their atomic number. Cl (chlorine) and Br (bromine) are very similar because they both have seven valence electrons, and both need only one more to be like a noble gas. (The need to have eightelectrons in the outer main shell is called the octet rule, and the reason for <span>this is understood by scientists, but is complicated.) HOPE IT HELPED
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6 0
3 years ago
If you were to take object A to the moon, which has less gravity than Earth, would its mass change? Why or why not?
Olenka [21]

Answer:

No

Explanation:

Mass never changes unless you actually cut off or add to the object.

<u>Weight</u> changes based on gravity, but mass doesn't

5 0
4 years ago
A graduated cylinder is filled with 54.32 cm3 of water. An irregular solid made of iron is carefully placed into the graduated c
NeTakaya

Answer:

<h3>The answer is 26.22 g</h3>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

density of iron = 7.874 g/cm³

volume = final volume of water - initial volume of water

volume = 57.65 - 54.32 = 3.33 mL

We have

mass = 7.874 × 3.33 = 26.22042

We have the final answer as

<h3>26.22 g</h3>

Hope this helps you

3 0
3 years ago
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