Recent activity by BenedictLast

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Calculate the standard enthalpy change for the following reaction: 2H2(g) + O2(g) → 2H2O(l)Given the standard enthalpies of formation for H2O (l), H2 (g) and O2 (g) are -285.8 kJ/mol, 0 kJ/mol and 0 kJ/mol, respectively.

answered 2 days ago in Chemical thermodynamics

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What is the color of a compound containing copper ions in a +2 oxidation state and sulfur ions that has been exposed to air for several weeks?

answered 6 days ago in Inorganic Chemistry

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Calculate the cell potential for the following electrochemical reaction: Cu(s) + 2 Ag+(aq) → Cu2+(aq) + 2 Ag(s) The standard reduction potentials are: Cu2+(aq) + 2 e- → Cu(s) E° = 0.34 V Ag+(aq) + e- → Ag(s) E° = 0.80 V

asked Jan 23 in ElectroChemistry

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Who created the broaden-and-build theory?

asked Jan 17 in Psychology

1 answer 27 views

Outline the contact hypothesis

answered Jan 15 in Psychology

1 answer 30 views

What are the four stages of Piaget's cognitive development theory?

answered Jan 15 in Psychology

1 answer 30 views

What is a perceptual set?

answered Jan 14 in Psychology

1 answer 28 views

How does a schema influence attention?

asked Jan 14 in Psychology

1 answer 29 views

What is the biological perspective in psychology?

asked Jan 14 in Psychology

1 answer 36 views

What is development?

asked Jan 13 in Psychology

1 answer 53 views

Which class of acids acetic acid (ch 3 cooh) belongs to?

asked Jan 8 in Science

1 answer 15 views

What is the atomic number of magnesium?

answered Jan 6 in Science

1 answer 15 views

What is the amount of force pushing against a given area?

answered Jan 6 in Science

1 answer 39 views

The term “vapor” refers to the gas phase when it exists at a temperature below what?

asked Jan 2 in Science

1 answer 28 views

The process of making a polymer is called what?

asked Jan 2 in Science

1 answer 49 views

Solar and wind are still expensive compared to what?

asked Dec 31, 2024 in Science

1 answer 37 views

Matter can be described with what two encompassing types of properties?

asked Dec 31, 2024 in Science

1 answer 21 views

Bromine is much less abundant than fluorine or chlorine, but it is easily recovered from seawater, which contains about 65 mg of br− per what?

asked Dec 30, 2024 in Science

1 answer 19 views

What causes cobalt chloride to turn pink?

answered Dec 28, 2024 in Science

1 answer 46 views

What is the study of forces in equilibrium?

asked Dec 27, 2024 in Science

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