Recent activity by PercyJxq5456

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What is the number of electrons transferred when zinc metal reacts with copper(II) ions in a galvanic cell? The balanced reaction is:Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s)

asked Feb 13 in ElectroChemistry

1 answer 34 views

How can the understanding of the role of chemistry in society and the economy be improved among the general public, and what are some effective methods that can be used to increase awareness and promote interest in the subject?

asked Feb 13 in Chemical education

1 answer 33 views

Calculate the standard enthalpy of formation, ΔH°f, of carbon dioxide (CO2) gas given the following thermochemical equations: C(s) + O2(g) → CO2(g) ΔH°rxn = -393.5 kJ/mol C(s) + O2(g) → CO(g) ΔH°rxn = -110.5 kJ/mol CO(g) + 1/2 O2(g) → CO2(g) ΔH°rxn = -283.0 kJ/mol Assume that all reactants and products are in their standard states.

answered Feb 3 in ThermoChemistry

1 answer 63 views

Calculate the average energy and specific heat capacity of a system containing 1000 molecules of an ideal gas at a temperature of 300 K, when the gas is subjected to an isochoric process and its volume remains constant at 2.5 L.

answered Jan 23 in Physical Chemistry

1 answer 38 views

What is the terminal decline hypothesis?

answered Jan 20 in Psychology

1 answer 56 views

How does intersectionality help us understand social erasure?

answered Jan 17 in Psychology

1 answer 33 views

What is a best-fit line?

asked Jan 17 in Psychology

1 answer 25 views

What is drive theory?

asked Jan 15 in Psychology

1 answer 61 views

Why do people experience stress?

asked Jan 15 in Psychology

1 answer 33 views

What is the modular theory of the mind?

asked Jan 15 in Psychology

1 answer 24 views

When electrons return to a lower energy level, they emit the excess energy in the form of what?

answered Jan 8 in Science

1 answer 34 views

What particles allow fungi to reproduce through unfavorable conditions?

answered Jan 7 in Science

1 answer 42 views

How many low and high tides occur per day?

asked Dec 30, 2024 in Science

1 answer 13 views

Fungus-like protist saprobes play what role in a food chain and are specialized to absorb nutrients from nonliving organic matter, such as dead organisms or their wastes?

asked Dec 28, 2024 in Science

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