Given: N2H4(l) + O2(g) LaTeX: \longrightarrow⟶ N2(g) + 2H2O(g) ΔH°1 = –543 kJ·mol–1 2H2(g) + O2(g) LaTeX: \longrightarrow⟶ 2H2O(g) ΔH°2 = –484 kJ·mol–1 N2(g) + 3H2(g) LaTeX: \longrightarrow⟶ 2NH3(g) ΔH°3 = –92 kJ·mol–1 What is the standard enthalpy change for the following reaction? 2NH3(g) LaTeX: \longrightarrow⟶ N2H4(l) + H2(g) Group of answer choices

Look at the bean data from days 4–6. use these data to explain how natural selection changed the number of dark red walking beans over time. writing part

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

What is the wavelength of a 3*10^12 hz infrared wave a 3*10^20m b 1* 10^4m c 3*10^-3m d 1*10^-4 m