Recent activity by GinaMccombs6

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How can chemistry students from low-income communities access high-quality resources and textbooks to enhance their understanding and mastery of the subject?

answered Feb 4 in Chemical education

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A student needs to calculate the efficiency of a voltaic cell that has a standard potential difference of 0.78 V and produces a current of 2.5 A. The cell is operated for 8 hours and consumes a total of 2400 Coulombs of charge. What is the efficiency of this electrochemical cell?

answered Jan 22 in ElectroChemistry

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A chemistry student is given a chemical equation for the reaction between calcium chloride and sodium carbonate. The equation is unbalanced and the student must balance it, while ensuring that the correct stoichiometric coefficients for each compound are used. The student must then calculate the mass of product formed when 5.0 grams of calcium chloride react completely with excess sodium carbonate. What is the mass of the product formed?

answered Jan 22 in Inorganic Chemistry

1 answer 96 views

A 2.5 L container was initially filled with 0.1 M solution of nitrogen dioxide which decomposes into nitrogen monoxide and oxygen gas according to the following reaction:2NO2(g) ⇌ 2NO(g) + O2(g)After the system has reached equilibrium, the concentration of nitrogen monoxide is found to be 0.05 M. What is the equilibrium concentration of oxygen gas in the container?

answered Jan 22 in Chemical equilibrium

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Why is statistical power important?

answered Jan 20 in Psychology

1 answer 56 views

How do evolutionary psychologists explain human behaviour?

asked Jan 17 in Psychology

1 answer 11 views

How does cocaine affect the brain?

asked Jan 17 in Psychology

1 answer 26 views

Where does pragmatism see the value of collaboration?

answered Jan 16 in Psychology

1 answer 28 views

Why is unsupervised learning useful?

answered Jan 15 in Psychology

1 answer 31 views

Who proposed the 'Integrated Threat Theory'?

answered Jan 15 in Psychology

1 answer 37 views

What determines the unique sequence for every protein?

asked Jan 6 in Science

1 answer 36 views

In the lens makers' equation, diverging lenses and virtual images are associated with what kinds of numbers?

asked Dec 31, 2024 in Science

1 answer 47 views

How many more legs do spiders have compared to insects?

asked Dec 30, 2024 in Science

1 answer 61 views

Birds that move pollen from flower to flower are called what?

asked Dec 30, 2024 in Science

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