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The standard enthalpy of formation of H₂O(l) at 298 K is -285.8 kJ/mol. Calculate the change in internal energy for the following process at 298 K and 1 atm: H₂O (l) → H₂ (g) + 1/2 O₂ (g) ∆E⁰=?

asked Dec 24, 2024

2 answers 154k views

A glass rod that has been charged to + 13.0 nC touches a metal sphere. Afterward, the rod's charge is + 7.0 nC .How many charged particles were transferred?

asked Nov 25, 2024

1 answer 186k views

A fire on ellis island burned the immigration station to the ground. a. true b. false

answered Nov 23, 2024

1 answer 148k views

Which of the following are considered an essential nutrient? 1) Carbohydrates 2) Proteins 3) Vitamins 4) Water

asked Nov 8, 2024

1 answer 45.9k views

If the temperature at which a certain compound melts is a random variable with a mean value of 130°C and a standard deviation of 4°C, what are the mean temperature and standard deviation measured in °F?

answered Oct 1, 2024

1 answer 227k views

How has international trade historically influenced various aspects of nations? A) It has had a significant impact on public health and politics B) It primarily affected industry and agriculture C) It

answered Sep 7, 2024

1 answer 188k views

Early spanish colonization of north america was tied to efforts at religious conversion. a. true b. false

answered Jul 1, 2024

1 answer 21.2k views

Which of the following foods would fall in the "Verduras" food group? La lechuga La mantequilla O La carne O Las grasas

asked Jun 18, 2024

1 answer 158k views

today, the chemistry of the terrestrial planets does not include a lot of free hydrogen. chemists call the chemistry in places like the earth: question 18answer a. expanded b. oxidized c. comet-like d.

asked May 22, 2024

1 answer 133 views

Defensive drivers stay at least ____ seconds behind the vehicle ahead while driving. A) 1-2 seconds B) 3-4 seconds C) 5-6 seconds D) 7-8 seconds

answered May 16, 2024

1 answer 187k views

What's the meaning of "white coat syndrome"?

answered May 12, 2024

2 answers 51.7k views

Un ejemplo gráfico de la influencia de los medios de comunicación se encuentra en: a) Un documental de la selva b) Un televisor c) La táctica de Hitler para manipular a la sociedad alemana d) Todas las

answered Mar 24, 2024

1 answer 152k views

Which statement regarding chronic venous insufficiency is INCORRECT? Poor circulation makes tissues vulnerable to trauma and infection resulting in the formation of varicose veins. Chronic venous insufficiency

answered Mar 8, 2024

1 answer 6.8k views

In a poultry farm having hens and pigs, Mawia can see 84 heads and 282 legs. How many hens are there on the farm? A. 18 B. 21 C. 24 D. 27

asked Feb 19, 2024

1 answer 161k views

In order to show that △ABC≅△DEF by the ASA (Angle-Side-Angle) postulate, what else would need to be congruent? A) Side BC must be congruent to Side EF. B) Angle B must be congruent to Angle E. C) Angle

asked Jan 16, 2024

1 answer 109k views

Currently, to become a music therapist in Canada, there are only 2 universities to choose from offering a recognized music therapy training program. A) Several B) Numerous C) Limited D) Abundant

answered Jan 11, 2024

1 answer 183k views

Characteristics of a number may be positive negative or always zero

asked Dec 27, 2023

2 answers 194k views

Find the missing side, please

answered Aug 3, 2023

2 answers 9.2k views

A car has a mass of 1000 kg. What is the acceleration produced by a force of 2000 N? Newton's 2nd Law of Motion states: F = ma

answered Aug 1, 2023

1 answer 167k views

you are skiing down a mountain with a vertical height of 2900 feet. the distance from the top of the mountain to the base is 5800 feet. to the nearest degree, what is the angle elevation from the base

answered Jul 31, 2023

2 answers 88.3k views

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