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Yuki888 [10]
2 years ago
11

An unknown element sample has 2 isotopes present. The first isotope has a mass of 6.017 amu and is

Chemistry
1 answer:
oksano4ka [1.4K]2 years ago
8 0

Answer:

Calculating Atomic Mass

Change each percent abundance into decimal form by dividing by 100. Multiply this value by the atomic mass of that isotope. Add together for each isotope to get the average atomic mass.

Explanation:

have a nice day

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Determine the molecular geometry based on the description of bonding and lone pairs of electrons around the central atom. Three
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Answer:

Three double bonds and no lone pairs of electrons- trigonal planar

Two single bonds and two lone pairs of electrons-bent

Five single bonds and no lone pairs of electrons- trigonal bipyramidal

Three single bonds and one lone pair of electrons- trigonal pyramidal

Two double bonds and no lone pairs of electrons - linear

Four single bonds and no lone pairs of electrons- tetrahedral

Six single bonds and no lone pairs of electrons- octahedral

Explanation:

The valence shell electron pair repulsion theory gives a description of the shape of a molecule based on the number of regions of electron density present on the valence shell of the central atom of the molecule.

The molecules are distorted away from the shape predicted on the basis of the VSEPR by the presence of lone pairs on the valence shell of the central atom in the molecule. In the absence of lone pairs, the shape of a molecule is exactly the shape predicted on the basis of the VSEPR theory.

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3 years ago
What is a climograph
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A climograph is a dual-purpose graph, showing two different kinds of information. A bar graph shows how much precipitation a given place receives during a period of time. A line graph shows the temperature conditions for the same place during the same period of time.
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3 years ago
Which of these statements is true about photons?
Yuliya22 [10]

Answer: it’s a I believe

Explanation: protons are smaller then atoms which means they have less mass

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One of the biggest dangers of storms that produce heavy rains or storm surges is ___.
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B. Flooding

Explanation:

Flooding can be caused by heavy rains/storm surges. Hope this helped!

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When a substance is heated ,the kinetic energy of its molecules
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Answer:

When a substance is heated ,the kinetic energy of its molecules also increase.

Explanation:

K.E is directly proportional to T

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