Recent activity by TinaDiederic

1 answer 15 views

How can chemistry students and educators work together to advocate for increased funding for chemistry education and ensure that students have adequate resources and materials for their learning and experimentation?

answered 1 day ago in Chemical education

1 answer 74 views

What are some effective strategies for understanding complex chemical concepts, and how can they be applied to improve your performance in chemistry class?

asked 6 days ago in Chemical education

1 answer 50 views

Calculate the equilibrium constant for the reaction: 2 NOCl(g) ⇌ 2 NO(g) + Cl2(g) if at equilibrium the concentrations are [NOCl] = 0.050 M, [NO] = 0.030 M, and [Cl2] = 0.020 M.

answered Jan 23 in Chemical equilibrium

1 answer 62 views

Calculate the enthalpy change for the combustion of methane gas (CH4) if 37.0 g of CH4 is completely burned in a bomb calorimeter and the temperature increases by 285.4 K. Assume that the calorimeter has a heat capacity of 4.40 kJ/K and that the combustion reaction is as follows: CH4(g) + 2O2(g) -> CO2(g) + 2H2O(l); ΔH=-890.4 kJ/mol. What is the enthalpy change for the combustion of one mole of methane gas?

answered Jan 23 in Chemical reactions

1 answer 20 views

What are the two types of photoreceptors in the human eye?

answered Jan 20 in Psychology

1 answer 16 views

How does clozapine affect the brain?

answered Jan 17 in Psychology

1 answer 5 views

According to the self-determination theory, what are the three basic psychological needs that drive behaviour?

answered Jan 17 in Psychology

1 answer 18 views

What is demand characteristics?

asked Jan 15 in Psychology

0 answers 5 views

Who proposed the constructivist theory of perception?

asked Jan 15 in Psychology

1 answer 29 views

What is machine learning?

asked Jan 15 in Psychology

1 answer 49 views

What is 'neural plasticity'?

asked Jan 14 in Psychology

1 answer 31 views

Why does the heating element of a toaster get hot so quickly?

asked Jan 8 in Science

1 answer 20 views

Which law explains why a ship weighing thousands of metric tons floats on water?

answered Jan 8 in Science

1 answer 23 views

What occurs when a few individuals start, or found, a new population?

asked Jan 7 in Science

1 answer 26 views

What kind of energy does pyruvate have a lot of?

answered Jan 7 in Science

1 answer 29 views

What influence does the horizontal motion of a projectile have on free fall?

asked Jan 6 in Science

1 answer 23 views

What do atoms form by sharing valence electrons?

answered Jan 6 in Science

1 answer 27 views

He mass spectrometer measures the percent abundance of different what?

answered Dec 30, 2024 in Science

1 answer 7 views

The science of analyzing tree rings is called what?

answered Dec 27, 2024 in Science

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