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Anna007 [38]
2 years ago
9

The Lewis diagram for BH2 is:

Chemistry
1 answer:
Luda [366]2 years ago
4 0

Answer:

Electron pair geometry- trigonal planar

There is one lone pair around the boron atom

The geometry of BH2 is bent

Explanation:

The valence shell electron pair repulsion theory offers a frame work for determining the shape of molecules based on the number of electron pairs of the valence shell of the central atom in the molecule.

In BH2-, the central atom is boron. There is a lone pair on boron. Owing to the lone pair on boron, the molecular geometry of BH2 is bent.

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3 years ago
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The substances below are listed by increasing specific heat capacity value. Starting at 30.0 °C, they each absorb 100 kJ of ther
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Answer:

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Explanation:

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Heat change = mass of substance × specific heat × change in temperature

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Therefore; the one that will increase in temperature the most is Silver

7 0
3 years ago
The atomic number of polassium and
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Explanation:

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Therefore Calcium would have a smaller atomic size.

6 0
2 years ago
7. Suppose each of these isotopes emits a beta particle. Give the iso-
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In a beta emission, the mass number of the daughter nucleus remains unchanged while the atomic number of the daughter nucleus increases by one unit. The following are isotopes produced when the following undergo beta emission;

1) potassium-42  ------> Ca - 42

2) iodine-131 ------------> Xe - 131

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4)  sodium-24 -----------> Mg -24

The daughter nucleus formed after beta emission is found one place after its parent in the periodic table.

Regarding the stability of the daughter nuclei, a nucleus is unstable if the neutron-proton ratio is less than 1 or greater than 1.5.

Hence, the following daughter nuclei are stable; Ca - 42, Xe - 131, Mg -24.

Learn more: brainly.com/question/1371390

7 0
2 years ago
True or false sodium is a member of the transition elements
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2 years ago
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