What are the two forms that make up almost all of Earth's freshwater

Consider the reaction between hydrazine and hydrogen to produce ammonia, N2H4 (g) + H2 (g) →2NH3 (g). Use enthalpies of formation and bond enthalpies to estimate the enthalpy of the nitrogen-nitrogen bond in N2H4.

A scientist is working with methane (CH4) and butane (C4H10). Which statement best compares these chemicals? 1.) They are two different types of molecules that each contain the same number of atoms. 2.

Convert 100 mi/hr into km/hr

What is the name for the new technology that works on the atomic or molecular level? a. nanotechnology b. invisotechnology c. digitech d. spectromotography

Word equation for Methanol (CH3OH) form when carbon monoxide reacts with hydrogen

Which of the following is a precipitation reaction? a. 2 LiI (aq) + Hg2 (NO3) 2 (aq) →Hg2I2 (s) + 2 LiNO3 (aq) b. NaCl (aq) + LiI (aq) → NaI (aq) + LiCl (aq) c. HCl (aq) + KOH (aq) → KCl (aq) + H2O (l) d.

How many outmost electrons do lithium and potassium have

Which of the following is a heterogeneous mixture Air Salt water Steel Soil I think it's soil but I'm not positive

When 40.5 g of Al and 212.7 g of Cl2 combine in the reaction: 2 Al (s) + 3 Cl2 (g) - -> 2 AlCl3 (s) b) How many moles of AlCl3 are formed?

Which factor does not influence the rate of a chemical reaction? A. the concentration of reactants B. the surface area of reactants C. the presence of a catalyst D. the volume of the container in which the reaction occurs