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Anonymous

1 day ago

#chemistry #science

A polar bond does not always lead to a polar molecule Explain the statement by referring to OF2 and CO2 molecules. In your explanation include the polarity of the bonds and the shape of the molecules?

2 3

Getrud Kunyanda

2 days ago

#chemistry

The bond between 2 carbons? ?

2 1

Anonymous

2 days ago

#chemistry #science

Define electronegativity?

2 1

Anonymous

2 days ago

#chemistry #science

Although the molecules of CH4 and CH3Cl have the same shape, CH4 is polar whilst CH3Cl is non-polar. What's the reason for the difference in molecular polarity?

2 1

Anonymous

2 days ago

#chemistry

Define covalent bond?

2 1

Getrud Kunyanda

2 days ago

#materials-science #chemistry

Full structure of a beryllium? ?

2 1

Getrud Kunyanda

2 days ago

#chemistry #science

What is the neutron number of beryllium? ?

2 1

Getrud Kunyanda

2 days ago

#chemistry #science

What is the mass number of beryllium ?

2 1

Getrud Kunyanda

2 days ago

#element-properties #chemistry #science

What does oxygen, carbon and beryllium have in common? At least 5 ?

2 1

Getrud Kunyanda

2 days ago

#chemistry #science

What does oxygen, carbon and beryllium? ?

2 1

James Mahanyu

2 days ago

#academics #chemistry

Calculate the percentage recovery after recrystallization? ?

Mass of crude sample=1.2g Mass of recrystallized (pure)=0.474g % of recrystallized sample=?

2 1

Tumwine Godfrey

2 days ago

#chemistry #answers #science

What is diffusion? ?

2 1

Ijeoma Ukanze

3 days ago

#chemistry #science

What is oxonium ion ?

2 1

Anonymous

3 days ago

#chemistry #acids

State physical and chemical properties of an acid ?

2 1

Anonymous

4 days ago

#materials-science #laboratory-equipment #chemistry

Briefly describe the importance of a desiccator and desiccant?

2 1

Anonymous

4 days ago

#materials-science #engineering #chemistry #science

What is the appropriate drying temperature and time range to determine dry mass?

2 1

ALHASSAN RASHIDA

4 days ago

#pharmaceutical #chemistry #k #medical

Give pictures of tetracyclic drugs ?

2 1

Simon Petergeminia

4 days ago

#chemistry #physics

The half -life of the radioactive nucleus Ra is 1.6×10^3years. If a sample initially contains 3.00×10^16 such nuclei determine, the initial activity in curies,?

2 1

Simon Petergeminia

4 days ago

#chemistry #science #physics

Exlain three applications of radioactive decay?

2 1

Anonymous

4 days ago

#mathematics #chemistry

#chemistry

Anonymous

A polar bond does not always lead to a polar molecule Explain the statement by referring to OF2 and CO2 molecules. In your explanation include the polarity of the bonds and the shape of the molecules?

Getrud Kunyanda

The bond between 2 carbons? ?

Anonymous

Define electronegativity?

Anonymous

Although the molecules of CH4 and CH3Cl have the same shape, CH4 is polar whilst CH3Cl is non-polar. What's the reason for the difference in molecular polarity?

Anonymous

Define covalent bond?

Getrud Kunyanda

Full structure of a beryllium? ?

Getrud Kunyanda

What is the neutron number of beryllium? ?

Getrud Kunyanda

What is the mass number of beryllium ?

Getrud Kunyanda

What does oxygen, carbon and beryllium have in common? At least 5 ?

Getrud Kunyanda

What does oxygen, carbon and beryllium? ?

James Mahanyu

Calculate the percentage recovery after recrystallization? ?

Tumwine Godfrey

What is diffusion? ?

Ijeoma Ukanze

What is oxonium ion ?

Anonymous

State physical and chemical properties of an acid ?

Anonymous

Briefly describe the importance of a desiccator and desiccant?

Anonymous

What is the appropriate drying temperature and time range to determine dry mass?

ALHASSAN RASHIDA

Give pictures of tetracyclic drugs ?

Simon Petergeminia

The half -life of the radioactive nucleus Ra is 1.6×10^3years. If a sample initially contains 3.00×10^16 such nuclei determine, the initial activity in curies,?

Simon Petergeminia

Exlain three applications of radioactive decay?

Anonymous

Calculate the molar mass of: 0.5 mol of a covalent compound with a mass of 49 g.

Anonymous