Recent activity by OfeliaRansom

1 answer 30 views

Calculate the standard enthalpy change for the following chemical reaction involving solutions:2HNO3(aq) + Ba(OH)2(aq) → Ba(NO3)2(aq) + 2H2O(l)Given the following information:ΔHf° [HNO3(aq)] = -207.5 kJ/molΔHf° [Ba(OH)2(aq)] = -994.0 kJ/molΔHf° [Ba(NO3)2(aq)] = -537.5 kJ/mol

answered 2 days ago in Chemical thermodynamics

1 answer 34 views

A bottle contains a mixture of nitrogen and oxygen gases. At a specific temperature and pressure, the nitrogen molecules move on an average velocity of 500 m/s and oxygen molecules move at 400 m/s. What is the partial pressure of nitrogen and oxygen in the mixture if the total pressure of the gas is 1 atm?

asked Jan 22 in Physical Chemistry

1 answer 20 views

When does the post-conventional stage of moral development occur?

answered Jan 20 in Psychology

1 answer 38 views

Why was Bandura's Bobo doll experiment important?

answered Jan 20 in Psychology

1 answer 12 views

According to the social identity theory, how are individuals influenced by social categorisation?

answered Jan 16 in Psychology

1 answer 51 views

Why is the cognitive approach important for animal psychology?

answered Jan 16 in Psychology

1 answer 6 views

What is the difference between longitudinal and cross-sectional research?

asked Jan 14 in Psychology

1 answer 24 views

When fossil fuel is burned the chemical energy is converted into what?

asked Jan 8 in Science

1 answer 40 views

What thin whip-like structures help prokaryotes move toward food or away from toxins?

asked Jan 8 in Science

1 answer 23 views

What does the moon not have to protect it from extreme temperatures?

answered Jan 6 in Science

1 answer 21 views

What are the properties of solutions called that depend only on the concentration of dissolved particles and not on their identity?

asked Jan 6 in Science

1 answer 30 views

The amount of energy needed to raise the temperature of one gram of liquid water by 1°c is also known as?

answered Dec 31, 2024 in Science

1 answer 23 views

Modern members of what broad animal group live in many different habitats and are found on every continent except antarctica?

answered Dec 31, 2024 in Science

1 answer 10 views

Hydrocarbons are combined with oxygen in a series of enzymatic steps to product water, carbon dioxide, and energy, which is stored in the form of what?

answered Dec 30, 2024 in Science

1 answer 31 views

What is another name for a reasonable explanation for something that might be formed near the beginning of a scientific inquiry into a problem?

asked Dec 28, 2024 in Science

1 answer 36 views

What type of logic can lead to important conclusions from the collecting and analyzing of observations?

answered Dec 27, 2024 in Science

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