Recent activity by GerardoGall2

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How can chemistry students effectively learn practical skills and concepts related to experimenting with limited access to laboratory equipment and facilities?

asked 23 hours ago in Chemical education

1 answer 26 views

How can a distillation column be designed to effectively separate a binary mixture of ethanol and water with a specific composition, using commonly available materials and maximizing efficiency while minimizing heat loss?

answered 1 day ago in Chemical engineering

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What is the concentration of lead (Pb) and cadmium (Cd) in a water sample collected from a polluted river using atomic absorption spectroscopy?

asked 6 days ago in Analytical Chemistry

1 answer 36 views

A 15.0 g sample of a mixture containing sodium chloride and sodium nitrate is dissolved in water, and then silver nitrate is added until no more precipitation occurs. The mass of the precipitate is found to be 20.4 g. What is the mass percentage of each component in the mixture?

answered Jan 22 in Analytical Chemistry

1 answer 47 views

How does the attachment theory explain our relationships?

asked Jan 20 in Psychology

1 answer 19 views

What is the maturation effect?

answered Jan 16 in Psychology

1 answer 26 views

How has evolutionary psychology influenced our understanding of human behaviour and cognition?

asked Jan 15 in Psychology

1 answer 29 views

What is psychotherapy?

answered Jan 14 in Psychology

1 answer 27 views

What is the importance of self-efficacy in teenage development?

asked Jan 13 in Psychology

1 answer 21 views

Why are eutherian mammals sometimes called placental mammals?

asked Jan 8 in Science

1 answer 25 views

What structure does methane have?

asked Jan 7 in Science

1 answer 32 views

What lipid, added to certain foods to keep them fresher longer, increases the risk of heart disease?

asked Jan 7 in Science

1 answer 20 views

What holds ionic and covalent compounds together?

answered Jan 6 in Science

1 answer 7 views

What bifurcates into the right and left bronchi in the lungs?

answered Jan 6 in Science

1 answer 37 views

How many valence electrons do neutral phosphorus atoms have?

answered Dec 30, 2024 in Science

1 answer 22 views

Geologists found that the youngest rocks on the seafloor were where?

asked Dec 30, 2024 in Science

1 answer 27 views

What has atoms with unstable nuclei?

asked Dec 28, 2024 in Science

1 answer 9 views

What surrounds the lungs in a thoracic cavity?

answered Dec 27, 2024 in Science

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