Recent activity by RosaThrash79

1 answer 45 views

Calculate the bond dissociation energy of the H-H bond in the H2 molecule. Given the bond length of H2 is 74 pm and the enthalpy change for the reaction H2(g) → 2H(g) is 436 kJ/mol.

asked Jan 23 in Chemical bonding

1 answer 46 views

A laboratory assistant is asked to prepare a buffer solution with a pH of 7.10 using acetic acid (CH3COOH) and sodium acetate (NaCH3COO). If the laboratory assistant has 250 mL of 0.20 M acetic acid, how many grams of NaCH3COO will be needed to make the buffer solution?

asked Jan 22 in Chemical reactions

1 answer 22 views

According to Festinger's cognitive dissonance theory, what happens when our beliefs and behaviors are inconsistent?

answered Jan 20 in Psychology

1 answer 21 views

When evaluating a theory, what is the criterion for simplicity?

answered Jan 20 in Psychology

1 answer 24 views

What are the conditions that need to be in place for the contact hypothesis to work?

asked Jan 20 in Psychology

1 answer 4 views

When considering the ecological validity of experiments, what does this refer to?

asked Jan 16 in Psychology

1 answer 26 views

What is simplicity in theory evaluation?

asked Jan 15 in Psychology

1 answer 23 views

According to the experimenter expectancy effect, what does it refer to?

asked Jan 15 in Psychology

1 answer 36 views

Who is Lev Vygotsky and what was his contribution to psychology?

answered Jan 13 in Psychology

1 answer 37 views

What is the term for evolution over geologic time above the level of the species?

asked Jan 7 in Science

1 answer 6 views

What is the name of the second most electronegative element?

answered Jan 7 in Science

1 answer 24 views

The addition of electron gives the halide ions the same electron configuration as what gas?

answered Dec 31, 2024 in Science

1 answer 57 views

Learning to get used to something after being exposed to it for a while is associated with what kind of learning?

answered Dec 31, 2024 in Science

1 answer 48 views

In terms of scientific investigation, things you notice about an environment using your five senses are called what?

asked Dec 31, 2024 in Science

1 answer 22 views

How many groups of leaves does poison ivy typically have?

asked Dec 30, 2024 in Science

1 answer 67 views

How many chambers does a mammalian heart have?

asked Dec 30, 2024 in Science

1 answer 22 views

A mineral can be made of an element or a?

answered Dec 28, 2024 in Science

1 answer 42 views

How many chambers does the stomach of a ruminant have?

asked Dec 27, 2024 in Science

1 answer 8 views

What novelties can also arise when structures that originally played one role gradually acquire a different one?

asked Dec 27, 2024 in Science

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