What is the entropy change for the third reaction below?

N2 (g) + O2 (g) → 2NO (g), ∆H = 180 kJ

2NO2 (g) → 2NO (g) + O2 (g), ∆H = 112 kJ

N2 (g) + 2O2 (g) → 2NO2 (g)

A) 34 kJ

B) 292 kJ

C) 146 kJ

D) 68 kJ

How to find the atomic mass

Electrons are found in the A. nucleus. B. atomic zone. C. zone of electrons. D. electron shells or cloud

What did the Paxton Boys demand? that liquor not be banned in Georgia that slave codes be tightened in New York that the Indians be removed from Pennsylvania that the French be hanged in Quebec that John Peter Zenger be tried for treason

Compare and contrast ionic and Covalent compounds

Hexokinase catalyzes the first step of glycolysis, in which glucose is phosphorylated to form glucose‑6‑phosphate. Which of these statements are accurate? a. Hexokinase transfers the terminal phosphate of ATP to carbon 3 of glucose. b.

Which of the following statements is not true? Question 4 options: When atoms have similar electronegativities, electrons are shared equally When electrons are shared equally, the molecule is called a nonpolar molecule.

Write the isotope symbol for two isotopes of the same element. What makes the isotopes different? How are they similar?

According to the periodic table, which element has an atomic number of 40? a. u b. ca c. zr d. np

3. Which word best fits with the Earth's day and night cycle a. Revolution b. Rotation C Orbit d. Axis

What causes temperatures in the summer to be higher than temperatures in the winter? A. The greenhouse effect, which raises temperatures on Earth, takes place during the summer months only. B.