Recent activity by KraigMoore5

1 answer 29 views

How can chemistry students effectively conduct experiments and complete coursework when they have limited access to laboratory equipment and facilities due to budget constraints?

asked 23 hours ago in Chemical education

1 answer 40 views

Calculate the standard enthalpy change for the combustion of methane gas using the following reaction: CH4(g) + 2O2(g) → CO2(g) + 2H2O(g). Given the standard enthalpy of formation values for methane, carbon dioxide, and water, calculate the heat released or absorbed during this reaction. Express your answer in kJ/mol.

answered 2 days ago in Chemical thermodynamics

1 answer 51 views

What is the chemical formula of the unknown compound that has a molecular ion peak (M+) at m/z 146, and major fragment peaks at m/z 120 and 105 in the mass spectrum, and has the molecular ion peak four times more intense than the base peak? Use mass spectrometry to identify the unknown compound.

asked 6 days ago in Analytical Chemistry

1 answer 56 views

How can X-ray fluorescence spectroscopy be used to identify and quantify the presence of specific elements in a sample?

asked 6 days ago in Analytical Chemistry

1 answer 43 views

Here's a question:What is the molecular formula and structural formula of the fourth member of the alkane series, and how many possible isomers of this compound exist?

answered Jan 21 in Organic Chemistry

1 answer 33 views

According to Beck's cognitive therapy, what is negative automatic thinking?

answered Jan 20 in Psychology

1 answer 15 views

How does biopsychology explain motivation?

answered Jan 17 in Psychology

1 answer 46 views

Please evaluate the Baddeley and Hitch's model of working memory.

answered Jan 16 in Psychology

1 answer 5 views

Please evaluate the criticisms of Kohlberg's moral development theory?

answered Jan 16 in Psychology

1 answer 47 views

Who proposed the Trait Theory?

answered Jan 15 in Psychology

1 answer 24 views

What is the working memory model?

answered Jan 14 in Psychology

1 answer 20 views

Who developed the concept of the looking-glass self?

asked Jan 13 in Psychology

1 answer 5 views

What type of numerical figure is important in considering the precision and accuracy of a number?

asked Jan 8 in Science

1 answer 24 views

What size of ring will a summer drought cause in a tree?

asked Jan 7 in Science

1 answer 5 views

What kind of health problem can occur in the kidney and potentially cause problems with urination?

answered Jan 7 in Science

1 answer 26 views

The length of the sloped surface of a ramp is referred to as what?

answered Jan 2 in Science

1 answer 31 views

The different types of what systems work together to carry out all the life functions of the individual?

asked Dec 31, 2024 in Science

1 answer 23 views

By what process does oxygen enter the pores of flatworms?

asked Dec 30, 2024 in Science

1 answer 7 views

What do monotremes lack though they have hair and produce milk?

asked Dec 27, 2024 in Science

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