Questions by DennyWhiteho

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1 answer 29 views

Calculate the standard enthalpy change (∆H°) for the combustion of methane (CH4(g)) given the balanced equation: CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)(Note: The values of standard enthalpies of formation of CO2(g), H2O(l) and CH4(g) are -393.5 kJ/mol, -285.8 kJ/mol, and -74.8 kJ/mol, respectively)

asked 2 days ago in Chemical thermodynamics

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1 answer 31 views

Which country is formed by a hotspot along the mid-atlantic ridge?

asked Jan 8 in Science

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1 answer 45 views

What is the term for the cell fragments involved in blood clotting, which stick to tears in blood vessels and to each other?

asked Jan 7 in Science

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1 answer 41 views

What is the number of electrons equal to in every electrically neutral atom?

asked Jan 7 in Science

0 votes

1 answer 28 views

What is one major cause of skin cancer?

asked Jan 6 in Science

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1 answer 24 views

What determines velocity?

asked Jan 6 in Science

0 votes

1 answer 10 views

Which acid releases nitrates into soil?

asked Dec 27, 2024 in Science

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