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4 years ago

The term “ average atomic mass “ is a ______average so is calculator different Lee from a normal average

Chemistry

1 answer:

hoa [83]4 years ago

3 0

Average atomic mass of an element is a sum of the product of the isotope mass and its relative abundance.

For example: Chlorine has 2 isotopes with the following abundances

Cl(35): Atomic mass = 34.9688 amu; Abundance = 75.78%

Cl(37): Atomic mass = 36.9659 amu; Abundance = 24.22 %

Average atomic mass of Cl = 34.9688(0.7578) + 36.9659(0.2422) =

= 26.4993 + 8.9531 = 35.4524 amu

Thus, the term “ average atomic mass “ is a weighted average so it is calculated differently from a normal average

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Round to 4 significant figures. 35.5450

IrinaVladis [17]

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8 0

3 years ago

Read 2 more answers

How did buddhism spread to china?

Mrac [35]

Answer:

It is widely believed that Buddhism entered China via the Silk Road under the Han Dynasty. After trade and travel was established with the Yuezhi, who by that time were forced southward toward India, Yuezhi monks began to travel with the merchant caravans; preaching their religion along the Silk Road.

Explanation:

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4 0

3 years ago

The life cycle represents the process of

slega [8]

Answer:

The correct answer would be metamorphosis.

Metamorphosis is a biological process by which an immature form transforms into an adult form passing through numerous distinct stages.

It is mainly observed in amphibians and insects. For example, frog and butterfly.

The life cycle of a butterfly can be summarized as shown below.

3 0

3 years ago

Does water added to a flask containing chlorine gas and solid sodium react in the chemical reaction to make sodium chloride

Jet001 [13]

Answer:

Explanation:

Chemically, we can have a reaction between chlorine gas and solid sodium

This reaction is actually explosive and would produce fine powder of sodium chloride

We have the reaction as follows:

$2Na_{(s)}+Cl_{2(g)}\rightarrow2NaCl_{(s)}$

Essentally, what we can deduce from here is that we do not need to add water to the flask. Except for the reason that we would want the sodium chloride solid in the solution form, there is absolutely no reason to add water to the flask as the reaction would proceed normally

5 0

1 year ago

Lionel places red blood cells in a beaker of pure water, and then he observes their

scZoUnD [109]

Answer:

The red blood cells will burst

Explanation:

When the red blood cells are placed in pure water, they will gain water by osmosis, swell and finally burst due to their weak cell membranes. This process is referred to as hemolysis.

7 0

3 years ago