Recent activity by Sandra59H781

1 answer 25 views

Design and develop a polymer-based sensor that can detect the presence of ethanol in water up to a concentration of 50 mg/L with high sensitivity and selectivity. Evaluate the performance of the sensor and compare it with other existing ethanol sensors in terms of sensitivity, selectivity, response time, and stability.

asked 1 day ago in Polymer Chemistry

1 answer 5 views

A student attempted to synthesize 20 grams of a compound, but only ended up with 15 grams of the compound after the reaction. Calculate the percentage yield of the reaction.

asked Jan 22 in Chemical reactions

1 answer 35 views

What is the major product formed when 1-bromo-2-methylcyclohexane is treated with sodium ethoxide in ethanol at a temperature of 60°C?

asked Jan 21 in Organic Chemistry

1 answer 24 views

What are the limitations of the transformational approach to leadership?

answered Jan 16 in Psychology

1 answer 17 views

What is the main argument of Maslow's hierarchy of needs?

answered Jan 15 in Psychology

1 answer 21 views

What is the feature integration theory?

answered Jan 15 in Psychology

1 answer 17 views

What is the parallel distributed processing (PDP) model?

asked Jan 15 in Psychology

1 answer 25 views

What structure is an organelle that contains enzymes that break down and digest unneeded cellular components?

answered Jan 7 in Science

1 answer 49 views

What serves as a first responder to pathogenic threats that bypass natural physical and chemical barriers of the body?

answered Jan 7 in Science

1 answer 26 views

What is the term for a symbiotic relationship in which the parasite benefits while the host is harmed?

asked Jan 7 in Science

1 answer 47 views

Translation is the process of ordering the amino acids in the assembly of a?

asked Jan 2 in Science

1 answer 10 views

In seedless vascular plants such as ferns, the sporophyte releases spores from the undersides of what basic plant structures?

asked Dec 31, 2024 in Science

1 answer 23 views

Characterized by a short lifespan, what begin with production in the bone marrow under the influence of csfs and interleukins?

answered Dec 30, 2024 in Science

1 answer 23 views

A transformer has two coils, electrically insulated from each other. one coil is called the primary coil and the other is called the what?

answered Dec 28, 2024 in Science

1 answer 20 views

What is the natural selection that favors altruistic behavior by enhancing reproductive success of relatives known as?

asked Dec 27, 2024 in Science

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